Taylor Swift details 'anxiety'-filled relationship with Harry Styles that inspired 'Out of the Woods'

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Are Taylor Swift and Harry Styles finally in the clear yet?

In a new video released by the GRAMMY Museum on Wednesday, the 25-year-old pop superstar reveals that she felt anxiety throughout a relationship -- that is believed to have been with the One Direction frontman -- that inspired "Out of the Woods."

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Swift sits at a piano as she talks openly about her former relationship with the 21-year-old singer, which is from her Sept. 30th acoustic performance at the Clive Davis Theater in Los Angeles, California.

"I'm going to play you a song about a relationship I was in that the number one feeling I felt in the whole relationship was anxiety," she says. "Because it felt very fragile, it felt very tentative. And it always felt like, 'Okay, what's the next road block? What's the next thing that's gonna deter this? How long do we have before this turns into just an awful mess and we break up? Is it a month? Is it three days?'"

"And so, you know, I think a lot of relationships can be very solid and that's kind of what you hope for, for it to be solid and healthy but that's not always what you get," she adds. "And it doesn't mean that it's not special and extraordinary just to have a relationship that's fragile and somehow meaningful in that fragility."

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"So this is a song that I wrote with Jack Antonoff [from indie rock band Fun] and it's called 'Out Of the Woods,'" she says, before belting out a stripped-down version of the song that's rumored to be about Styles.

Swift started dating Styles in November 2012, but quickly called it quits in January 2013 after they reportedly got into an argument during a post-holiday vacation in the British Virgin Islands.

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Last November, Styles spoke up about the songs Swift penned about him on her 1989 album in a Google hangout chat on the band's YouTube channel.

"We write from personal experience, and I think everyone does, so it would be hypocritical of us to be like, 'Oh you can't write about us,'" he said about what it feels like to have someone write a song about you. "And [Taylor's] really good, so they're good songs. I'm really lucky in that sense."

Looks like the singer has taken a cue from his ex-girlfriend, however. Earlier this month, One Direction released "Perfect," their newest single from their upcoming album, Made in the A.M.. With lyrics like "And if you're looking for someone to write your breakup songs about, baby, I'm perfect," fans are convinced the song is about Swift.

See photos of Swift's star-studded 1989 tour:

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Taylor Swift details 'anxiety'-filled relationship with Harry Styles that inspired 'Out of the Woods'
MIAMI, FL - OCTOBER 27: Taylor Swift and Ricky Martin at American Airlines Arena on October 27, 2015 in Miami, Florida. (Photo by Rodrigo Varela/LP5/Getty Images for TAS)
MIAMI, FL - OCTOBER 27: Taylor Swift and Pitbull at American Airlines Arena on October 27, 2015 in Miami, Florida. (Photo by Rodrigo Varela/LP5/Getty Images for TAS)
MIAMI, FL - OCTOBER 27: Taylow Swift and Dwyane Wade at American Airlines Arena on October 27, 2015 in Miami, Florida. (Photo by Rodrigo Varela/LP5/Getty Images for TAS)
GREENSBORO, NC - OCT 21: Taylor Swift and Miranda Lambert performs at a concert for adoring fans at the Greensboro Coliseum on October 21, 2015 in Greensboro, North Carolina. (Photo by Steve Exum/LP5 Getty Images for TAS)
ATLANTA, GA - OCTOBER 24: Recording Artist Tove Lo joins Taylor Swift on stage at The 1989 World Tour playing to a SOLD OUT Georgia Dome on October 24, 2015 in Atlanta, Georgia. (Photo by Rick Diamond/LP5/Getty Images for TAS)
ARLINGTON, TX - OCTOBER 17: Ellie Goulding and Taylor Swift perform onstage during the 1989 World Tour Live on October 17, 2015 at the AT&T Stadium in Arlington, Texas. (Photo by Cooper Neill/LP5/Getty Images for TAS)
TORONTO, ON - OCTOBER 03: Singer/Songwriters Taylor Swift and special guest Charli XCX perform onstage during The 1989 World Tour Live In Toronto - Night 2 at Rogers Center on October 3, 2015 in Toronto, Canada. (Photo by George Pimentel/LP5/Getty Images for TAS)
TORONTO, ON - OCTOBER 02: Singer/songwriters Taylor Swift and Keith Urban perform onstage during The 1989 World Tour live in Toronto at Rogers Center on October 2, 2015 in Toronto, Canada. (Photo by George Pimentel/LP5/Getty Images for TAS)
ST LOUIS, MO - SEPTEMBER 29: Taylor Swift performs with special guest Nelly onstage during the 1989 World Tour at Scottrade Center on September 29, 2015 in St Louis, Missouri. (Photo by Dilip Vishwanat/LP5/Getty Images for TAS)
NASHVILLE, TN - SEPTEMBER 26: Singer/songwriters Taylor Swift (L) and Mick Jagger perform onstage during The 1989 World Tour live in Nashville at Bridgestone Arena at Bridgestone Arena on September 26, 2015 in Nashville, Tennessee. (Photo by John Shearer/LP5/Getty Images for TAS)
NASHVILLE, TN - SEPTEMBER 26: Singer/songwriters Taylor Swift (L) and Leona Lewis perform onstage during The 1989 World Tour live in Nashville at Bridgestone Arena at Bridgestone Arena on September 26, 2015 in Nashville, Tennessee. (Photo by John Shearer/LP5/Getty Images for TAS)
NASHVILLE, TN - SEPTEMBER 25: Singer/songwriters Taylor Swift (L) and Steven Tyler perform onstage during The 1989 World Tour live in Nashville at Bridgestone Arena on September 25, 2015 in Nashville, Tennessee. (Photo by John Shearer/LP5/Getty Images for TAS)
HOUSTON, TX - SEPTEMBER 09: Taylor Swift with special guest Wiz Khalifa at The 1989 World Tour Live In Houston at Minute Maid Park on September 9, 2015 in Houston, Texas. (Photo by Bob Levey/LP5/Getty Images for TAS)
SAN DIEGO, CA - AUGUST 29: Singer-songwriters Taylor Swift (L) and Avril Lavigne performs onstage during Taylor Swift The 1989 World Tour Live In San Diego at PETCO Park on August 29, 2015 in San Diego, California. (Photo by Charley Gallay/LP5/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 26: Singer-songwriters Taylor Swift (L) and Selena Gomez perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 26, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 26: Actress Lisa Kudrow (L) and singer-songwriter Taylor Swift perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 26, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 26: Singer-songwriters Justin Timberlake (L) and Taylor Swift perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 26, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 25: Singer-songwriters John Legend (L) and Taylor Swift perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 25, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 25: (L-R) Singer-songwriters Beck, Taylor Swift and St. Vincent perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 25, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 24: Singer-songwriters Alanis Morissette (L) and Taylor Swift perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 24, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 24: Singer-songwriters Taylor Swift (L) and Natalie Maines of the band Dixie Chicks perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 24, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 24: Singer-songwriter Taylor Swift (L) and comedian Ellen DeGeneres perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 24, 2015 in Los Angeles, California. (Photo by Christopher Polk/TAS/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 22: Actress Uzo Aduba (L) and singer-songwriter Taylor Swift perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 22, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 22: (L-R) Actor Matt Leblanc, singer-songwriter Taylor Swift, comedian Chris Rock and actor Sean O'Pry speak onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 22, 2015 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
LOS ANGELES, CA - AUGUST 22: Singer-songwriters Taylor Swift (L) and Mary J. Blige perform onstage during Taylor Swift The 1989 World Tour Live In Los Angeles at Staples Center on August 22, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for TAS)
LOS ANGELES, CA - AUGUST 21: Singer-songwriter Taylor Swift (L) and NBA player Kobe Bryant speak onstage during The 1989 World Tour Live In Los Angeles at Staples Center on August 21, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for TAS)
SANTA CLARA, CA - AUGUST 15: (L-R) Taylor Swift, musician Joan Beaz and actress Julia Roberts take a bow on stage during Swift's 'The 1989 World Tour' at Levi's Stadium on August 15, 2015 in Santa Clara, California. (Photo by John Medina/LP5/Getty Images for TAS)
SANTA CLARA, CA - AUGUST 15: Taylor Swift (C), Leigh-Anne Pinnock, Perrie Edwards, Jesy Nelson and Jade Thirlwall of Little Mix perform together during Swift's 'The 1989 World Tour' at Levi's Stadium on August 15, 2015 in Santa Clara, California. (Photo by John Medina/LP5/Getty Images for TAS)
SANTA CLARA, CA - AUGUST 14: Taylor Swift (C), Normani Kordei, Camila Cabello, Ally Brooke and Lauren Juaregi, of Fifth Harmony perform at Levi's Stadium on August 14, 2015 in Santa Clara, California. (Photo by John Medina/LP5/Getty Images for TAS)
SEATTLE, WA - AUGUST 08: Taylor Swift and Fetty Wap at CenturyLink Field on August 8, 2015 in Seattle, Washington. (Photo by Suzi Pratt/LP5/Getty Images for TAS)
SEATTLE, WA - AUGUST 08: Taylor Swift, Russell Wilson and Ciara perform at CenturyLink Field on August 8, 2015 in Seattle, Washington. (Photo by Suzi Pratt/LP5/Getty Images for TAS)
VANCOUVER, BC - AUGUST 01: Taylor Swift performs with special guests Nico and Vinz (R) during The 1989 World Tour Live at BC Place Stadium August 1, 2015 in Vancouver, British Columbia, Canada. (Photo by Jeff Vinnick/LP5/Getty Images for TAS)
FOXBORO, MA - JULY 25: Singer Taylor Swift (C) performs with Malcolm Kelly (L) and Tony Oller of MKTO at Gillette Stadium on July 25, 2015 in Foxboro, Massachusetts. (Photo by Michael Loccisano/LP5/Getty Images for TAS)
FOXBORO, MA - JULY 24: Singers Taylor Swift (R) and Nicholas Petricca of Walk the Moon perform at Gillette Stadium on July 24, 2015 in Foxboro, Massachusetts. (Photo by Michael Loccisano/LP5/Getty Images for TAS)
CHICAGO, IL - JULY 19: Taylor Swift and Sam Hunt perform during The 1989 Tour at Soldier Field on July 19, 2015 in Chicago, Illinois. (Photo by Daniel Boczarski/LP5/Getty Images for TAS)
CHICAGO, IL - JULY 19: Taylor Swift performs with Andreja Pejic and Lily Donaldson during The 1989 Tour at Soldier Field on July 19, 2015 in Chicago, Illinois. (Photo by Daniel Boczarski/LP5/Getty Images for TAS)
CHICAGO, IL - JULY 18: Andy Grammer and Taylor Swift perform during The 1989 Tour at Soldier Field on July 18, 2015 in Chicago, Illinois. (Photo by Daniel Boczarski/LP5/Getty Images for TAS)
CHICAGO, IL - JULY 18: Taylor Swif tand Serayah McNeill perform during The 1989 Tour at Soldier Field on July 18, 2015 in Chicago, Illinois. (Photo by Daniel Boczarski/LP5/Getty Images for TAS)
WASHINGTON, DC - JULY 14: Taylor Swift and Jason Derulo perform onstage during The 1989 World Tour Live at Nationals Park on July 14, 2015 in Washington, DC. (Photo by Paul Morigi/LP5/Getty Images for TAS)
WASHINGTON, DC - JULY 13: Taylor Swift and Lorde perform onstage during The 1989 World Tour Live at Nationals Park on July 13, 2015 in Washington DC. (Photo by Kris Connor/LP5/Getty Images for TAS)
EAST RUTHERFORD, NJ - JULY 11: Nick Jonas and Taylor Swift perform onstage during The 1989 World Tour Live at MetLife Stadium on July 11, 2015 in East Rutherford, New Jersey. (Photo by Kevin Mazur/LP5/WireImage)
EAST RUTHERFORD, NJ - JULY 11: Candice Swanepoel, Lily Aldridge, Taylor Swift, Uzo Aduba, Karlie Kloss, Behati Prinsloo and Gigi Hadid onstage during The 1989 World Tour Live at MetLife Stadium on July 11, 2015 in East Rutherford, New Jersey. (Photo by Kevin Mazur/LP5/WireImage)
EAST RUTHERFORD, NJ - JULY 10: Singer/songwriter Taylor Swift (R) performs onstage with The Weeknd during The 1989 World Tour Live at MetLife Stadium on July 10, 2015 in East Rutherford, New Jersey. (Photo by Larry Busacca/LP5/Getty Images for TAS)
EAST RUTHERFORD, NJ - JULY 10: World Cup Champions U.S. Women's Soccer National Team, Heidi Klum and Taylor Swift onstage during The 1989 World Tour Live at MetLife Stadium on July 10, 2015 in East Rutherford, New Jersey. (Photo by Kevin Mazur/LP5/WireImage)
EAST RUTHERFORD, NJ - JULY 10: Singer/songwriter Taylor Swift performs onstage with Hailee Steinfeld, Gigi Hadid, Lily Aldridge and Lena Dunham during The 1989 World Tour Live at MetLife Stadium on July 10, 2015 in East Rutherford, New Jersey. (Photo by Larry Busacca/LP5/Getty Images for TAS)
LONDON, ENGLAND - JUNE 27: Martha Hunt, Kendall Jenner, Serena Williams, Taylor Swift, Karlie Kloss, Gigi Hadid and Cara Delevingne perform onstage during The 1989 World Tour at Hyde Park on June 27, 2015 in London, England. (Photo by Dave Hogan/TAS/Getty Images for TAS)
PHILADELPHIA, PA - JUNE 13: Taylor Swift performs onstage with musician Rachel Platten during The 1989 World Tour on June 13, 2015 at Lincoln Financial Field in Philadelphia, Pennsylvania. (Photo by Dimitrios Kambouris/LP5/Getty Images for TAS)
PHILADELPHIA, PA - JUNE 12: Taylor Swift (R) performs onstage with Sydney Sierota of Echosmith during The 1989 World Tour on June 12, 2015 at Lincoln Financial Field in Philadelphia, Pennsylvania. (Photo by Dimitrios Kambouris/LP5/Getty Images for TAS)
PHILADELPHIA, PA - JUNE 13: Taylor Swift performs onstage with actress Mariska Hargitay during The 1989 World Tour on June 13, 2015 at Lincoln Financial Field in Philadelphia, Pennsylvania. (Photo by Dimitrios Kambouris/LP5/Getty Images for TAS)
PITTSBURGH, PA - JUNE 06: Recording artist Taylor Swift performs with the band Little Big Town during The 1989 World Tour live at Heinz Field on June 6, 2015 in Pittsburgh, Pennsylvania. (Photo by Jason Merritt/LP5/Getty Images for TAS)
DETROIT, MI - MAY 30: Musicians Dan Reynolds of Imagine Dragons and Taylor Swift perform on stage during the 1989 World Tour Live at Ford Field on May 30, 2015 in Detroit, Michigan. (Photo by Larry Busacca/LP5/Getty Images for TAS)
DETROIT, MI - MAY 30: (L-R) Model Martha Hunt, musician Taylor Swift, and model Gigi Hadid perform on stage during the 1989 World Tour Live at Ford Field on May 30, 2015 in Detroit, Michigan. (Photo by Larry Busacca/LP5/Getty Images for TAS)
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