Heather Locklear’s 'downward spiral' is ‘heartbreaking’ for daughter Ava

Feeling for her mom. Heather Locklear’s daughter, Ava Sambora, is hurting for her mother amid the Melrose Place alum’s battle with mental health and substance abuse problems.

A source tells Us Weekly that the 20-year-old — who Locklear shares with ex-husband Richie Sambora — is “really leaning on her boyfriend and a small close circle of friends she’s had for years” following the 56-year-old’s “downward spiral.”

The insider added that the mother-daughter duo has “always been incredibly close” and Ava “is trying to stay as private as possible” despite what’s happening.

“This erratic behavior is heartbreaking for Ava. She has been really sad and just down lately, out of sorts and not her usual self,” the source tells Us. “[Her dad] Richie has been a great support system for her and she’s leaning on him.” The insider noted that Ava “just wants the old Heather back.”

See Heather Locklear and daughter Ava:

19 PHOTOS
Heather Locklear and daughter Ava Sambora together
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Heather Locklear and daughter Ava Sambora together
HOLLYWOOD, CA - APRIL 11: Actresses Heather Locklear and Ava Sambora arrive at the 'Scary Movie V' Los Angeles premiere at ArcLight Cinemas Cinerama Dome on April 11, 2013 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - APRIL 11: Heather Locklear and Ava Sambora arrives at the 'Scary Movie V' - Los Angeles Premiere at ArcLight Cinemas Cinerama Dome on April 11, 2013 in Hollywood, California. (Photo by Steve Granitz/WireImage)
Actress Heather Locklear and daughter, actress Ava Sambora arrives at the premiere of This Is 40 held at Grauman's Chinese Theater in Hollywood. (Photo by Frank Trapper/Corbis via Getty Images)
HOLLYWOOD, CA - DECEMBER 12: Heather Locklear and Ava Sambora arrive at the 'This Is 40' - Los Angeles Premiere at Grauman's Chinese Theatre on December 12, 2012 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
Actress Heather Locklear and daughter Ava arrive at the world premiere of 'The Twilight Saga: Breaking Dawn Part 1' held at the Nokia Theater L.A. Live. (Photo by Frank Trapper/Corbis via Getty Images)
LOS ANGELES, CA - NOVEMBER 14: Actress Heather Locklear and daughter Ava Sambora arrive at the Los Angeles Premiere 'The Twilight Saga: Breaking Dawn - Part 1' at Nokia Theatre L.A. Live on November 14, 2011 in Los Angeles, California. (Photo by Barry King/FilmMagic)
Actress Heather Locklear and daughter Ava Sambora arrive at the premiere of 'Justin Bieber: Never Say Never' held at Nokia Theater L.A. Live. (Photo by Frank Trapper/Corbis via Getty Images)
LOS ANGELES, CA - FEBRUARY 8: Heather Locklear and daughter Ava Sambora arrive at the Los Angeles Premiere of 'Justin Bieber: Never Say Never' at the Nokia Theater L.A. Live on February 8, 2011 in Los Angeles, California. (Photo by Gregg DeGuire/FilmMagic)
LOS ANGELES, CA - OCTOBER 17: Ava Sambora and mom Heather Locklear arrive at the White Trash Beautiful Spring 2011 Fashion Show held at Sunset Gower Studios on October 17, 2010 in Los Angeles, California. (Photo by Gregg DeGuire/FilmMagic)
LOS ANGELES, CA - OCTOBER 17: Ava Sambora and mom Heather Locklear arrive at the White Trash Beautiful Spring 2011 Fashion Show held at Sunset Gower Studios on October 17, 2010 in Los Angeles, California. (Photo by Gregg DeGuire/FilmMagic)
LOS ANGELES, CA - MAY 20: Heather Locklear and daughter Ava Elizabeth Sambora arrive at the American Idol Season 8 Finale held at the Nokia Theatre L.A. Live on May 20, 2009 in Los Angeles, California. (Photo by Gregg DeGuire/FilmMagic)
LOS ANGELES, CA - MAY 20: Heather Locklear and daughter Ava Elizabeth Sambora arrive at the American Idol Season 8 Finale held at the Nokia Theatre L.A. Live on May 20, 2009 in Los Angeles, California. (Photo by Gregg DeGuire/FilmMagic)
Heather Locklear, Richie Sambora and daughter Ava Elizabeth (Photo by L. Cohen/WireImage)
HOLLYWOOD, CA. - JANUARY 17: Actress Heather Locklear and daughter Ava arrive to Disney's Premiere of 'Hannah Montana & Miley Cyrus: Best Of Both Worlds' held at the El Capitan Theatre on January 17, 2008 in Hollywood, California. (Photo by Jeffrey Mayer/Wireimage) *** Local caption *** Heather Locklear
HOLLYWOOD, CA. - JANUARY 17: Actress Heather Locklear and daughter Ava arrive to Disney's Premiere of 'Hannah Montana & Miley Cyrus: Best Of Both Worlds' held at the El Capitan Theatre on January 17, 2008 in Hollywood, California. (Photo by Jeffrey Mayer/Wireimage) *** Local caption *** Heather Locklear
(EXCLUSIVE, Premium Rates Apply) Heather Locklear and Ava Sambora (Photo by Ray Mickshaw/WireImage)
Heather Locklear and daughter Ava Elizabeth at the Universal Studios Cinema in Universal City, California (Photo by Lester Cohen/WireImage)
Heather Locklear, Richie Sambora and daughter Ava during Rockin' the Corps Concert - An American Thank You Celebration for US Marines - Arrivals at Camp Pendelton in San Diego, California, United States. (Photo by J.Sciulli/WireImage for PMK/HBH)
Heather Locklear, Richie Sambora and daughter Ava (Photo by John Sciulli/WireImage for PMK/HBH)
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As previously reported, Locklear was hospitalized on June 25 for a possible overdose, just hours after she was released from jail following her arrest for allegedly attacking an EMT and police officer who responded to a domestic disturbance call at her home.

Earlier this week, a source told Us Weekly that The Perfect Man star is “entering long-term treatment for mental health and other issues.”

The insider told Us that “Heather has a pretty big team giving her support,” and that her “family is hopeful this time around that she will get better whereas the many times before they were not.”

“When she got out of jail she was supposed to voluntarily go in that day to get evaluated,” the source added of Locklear’s treatment. “But you can’t get evaluated until you do a detox so she was supposed to do that and she didn’t.”

The arrest last month was the latest in a string of concerning incidents involving Locklear. The Dynasty alum was arrested in February after attacking a police officer following a domestic dispute with her boyfriend, Chris Heisser, at her home in Thousand Oaks, California. She headed back to treatment for the sixth time in March and was also hospitalized for a psychiatric evaluation in June.

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Heather Locklear retro photos
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Heather Locklear retro photos
Portrait of American actress Heather Locklear dressed in jeans and a cropped sports jersey, late 1970s. (Photo by Hulton Archive/Getty Images)
DYANSTY - 'Reconciliation' - Airdate December 2, 1981. (Photo by ABC Photo Archives/ABC via Getty Images) HEATHER LOCKLEAR
DYNASTY - 'The Miscarriage' - Airdate December 16, 1981. (Photo by ABC Photo Archives/ABC via Getty Images) HEATHER LOCKLEAR
DYNASTY - Gallery October 1981. (Photo by ABC Photo Archives/ABC via Getty Images) HEATHER LOCKLEAR
T.J. HOOKER - Heather Locklear Gallery - Shoot Date: June 18, 1982. (Photo by ABC Photo Archives/ABC via Getty Images) HEATHER LOCKLEAR
LOS ANGELES - FEBRUARY 2: Actress Heather Locklear poses for a Fashion/portrait Session on February 2, 1981 in Los Angeles, California. (Photo by Harry Langdon/Getty Images)
UNITED STATES - OCTOBER 15: DYNASTY - Cast gallery - Season Two - 10/15/81, John Forsythe (Blake) and the 'Dynasty' women, from left: Linda Evans (Krystle), Pamela Bellwood (Claudia), Heather Locklear (Sammy Jo), Pamela Sue Martin (Fallon) and Joan Collins (Alexis). , (Photo by Bob D'Amico/ABC via Getty Images)
LOS ANGELES - FEBRUARY 2: Actress Heather Locklear poses for a Fashion/portrait Session on February 2, 1981 in Los Angeles, California. (Photo by Harry Langdon/Getty Images)
LOS ANGELES - FEBRUARY 2: Actress Heather Locklear poses for a Fashion/portrait Session on February 2, 1981 in Los Angeles, California. (Photo by Harry Langdon/Getty Images)
LOS ANGELES - FEBRUARY 2: Actress Heather Locklear poses for a Fashion/portrait Session on February 2, 1981 in Los Angeles, California. (Photo by Harry Langdon/Getty Images)
LOS ANGELES - FEBRUARY 2: Actress Heather Locklear poses for a Fashion/portrait Session on February 2, 1981 in Los Angeles, California. (Photo by Harry Langdon/Getty Images)
Heather Locklear and Tom Cruise at the Su Ling Restaurant in Los Angeles, California (Photo by Ron Galella/WireImage)
Heather Locklear & Scott Baio (Photo by Barry King/WireImage)
Heather Locklear and Guest during Raquetball Illustrated 'Player of the Year' Gala at Don the Beachcomber in Los Angeles, California, United States. (Photo by Ron Galella/WireImage)
T.J. HOOKER - Gallery - Shoot Date: June 18, 1982. (Photo by ABC Photo Archives/ABC via Getty Images) HEATHER LOCKLEAR
T.J. HOOKER - Cast Gallery - Shoot Date: June 28, 1982. (Photo by ABC Photo Archives/ABC via Getty Images) ADRIAN ZMED;WILLIAM SHATNER;RICHARD HERD;HEATHER LOCKLEAR
'Battle of the Network Stars' - 10/1/82 on the ABC Television Network competition 'Battle of the Network Stars'. (Photo by ABC via Getty Images) talent: HEATHER LOCKLEAR photographer: ABC credit: ABC source: American Broadcasting Companies, Inc. cap writer: JD
Heather Locklear during Party Celebrating 200th Episode of 'Melrose Place' at Garden of Eden in Hollywood, California, United States. (Photo by Ron Galella/WireImage)
Heather Locklear (Photo by SGranitz/WireImage)
Actress Heather Locklear who appeared in Dynasty 1986. Later in TJ Hooker, Melrose Place, and Spin City.
Lead actors of the television show Melrose Place. From (L-R): Laura Leighton, Heather Locklear and Andrew Shue. (Photo by Deborah Feingold/Corbis via Getty Images)
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