The compliment Justin Theroux gives Jennifer Aniston the most will make you smile

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This Is the Compliment Justin Theroux Gives Jennifer Aniston the Most

Aw, Justin Theroux!

ET caught up with the writer and actor at Activision for the launch of the game, Call of Duty: Black Ops III, where he revealed the compliment he gives his wife, Jennifer Aniston, the most, is simply, "She's beautiful."

"Not to be corny, but it's true," he said. "So I constantly say that."

WATCH: EXCLUSIVE: Justin Theroux Thinks the Silent Treatment in Relationships Is 'Infuriating'

How nice!

Theroux is actually an avid gamer, and told us his mancave is really just "a little office I play in and a little chair that's set up."

Click through to see photos of the couple:

21 PHOTOS
Jennifer Aniston and Justin Theroux
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The compliment Justin Theroux gives Jennifer Aniston the most will make you smile
AUSTIN, TX - OCTOBER 03: Actors Justin Theroux and Jennifer Aniston attend HBO's 'The Leftovers' Season 2 Premiere at Paramount Theatre on October 3, 2015 in Austin, Texas. (Photo by C Flanigan/WireImage)
BEVERLY HILLS, CA - FEBRUARY 22: Actors Justin Theroux and Jennifer Aniston arrive at the 2015 Vanity Fair Oscar Party Hosted By Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 22, 2015 in Beverly Hills, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
BEVERLY HILLS, CA - FEBRUARY 22: Justin Theroux and Jennifer Aniston arrive at the 2015 Vanity Fair Oscar Party Hosted By Graydon Carter at Wallis Annenberg Center for the Performing Arts on February 22, 2015 in Beverly Hills, California. (Photo by Anthony Harvey/Getty Images)
HOLLYWOOD, CA - FEBRUARY 22: Actors Jennifer Aniston and Justin Theroux arrive at the 87th Annual Academy Awards at Hollywood & Highland Center on February 22, 2015 in Hollywood, California. (Photo by Gregg DeGuire/WireImage)
Justin Theroux and Jennifer Aniston toast with Paradis Imperial at the Hennessy Paradis Imperial Reception at the Santa Barbara International Film Festival on Friday, January 30, 2015 in Santa Barbara, California (Photo by Todd Williamson/Invision for Hennessy/AP Images)
LOS ANGELES, CA - JANUARY 25: Actors Justin Theroux and Jennifer Aniston arrive at the 21st Annual Screen Actors Guild Awards at The Shrine Auditorium on January 25, 2015 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - JANUARY 25: Justin Theroux and Jennifer Aniston attend TNT's 21st Annual Screen Actors Guild Awards at The Shrine Auditorium on January 25, 2015 in Los Angeles, California. 25184_016 (Photo by Kevin Mazur/WireImage)
Jennifer Aniston, left, and Justin Theroux pose in the audience at the 21st annual Screen Actors Guild Awards at the Shrine Auditorium on Sunday, Jan. 25, 2015, in Los Angeles. (Photo by Vince Bucci/Invision/AP)
LOS ANGELES, CA - JANUARY 15: Actor Justin Theroux and actress Jennifer Aniston arrive at the 20th Annual Critics' Choice Movie Awards at Hollywood Palladium on January 15, 2015 in Los Angeles, California. (Photo by Jon Kopaloff/FilmMagic)
LOS ANGELES, CA - JANUARY 15: (EXCLUSIVE COVERAGE) Actors Jennifer Aniston (L) and Justin Theroux during the 20th annual Critics' Choice Movie Awards at the Hollywood Palladium on January 15, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for CCMA)
BEVERLY HILLS, CA - JANUARY 11: Actor Justin Theroux and actress Jennifer Aniston attend HBO's post Golden Globe Awards party at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Jason LaVeris/FilmMagic)
BEVERLY HILLS, CA - JANUARY 11: Actor Justin Theroux and actress Jennifer Aniston arrive at the 16th Annual Warner Bros. And InStyle Post-Golden Globe Party at The Beverly Hilton Hotel on January 11, 2015 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic)
BEVERLY HILLS, CA - JANUARY 11: 72nd ANNUAL GOLDEN GLOBE AWARDS -- Pictured: (l-r) Actor Justin Theroux and actress Jennifer Aniston arrive to the 72nd Annual Golden Globe Awards held at the Beverly Hilton Hotel on January 11, 2015. (Photo by Kevork Djansezian/NBC/NBC via Getty Images)
LOS ANGELES, CA - JANUARY 06: (L-R) Comedian Chelsea Handler, author Arianna Huffington and actors Jennifer Aniston and Justin Theroux attend as Arianna Huffington hosts a special lunch at home for Jennifer Aniston to celebrate CAKE on January 6, 2015 in Los Angeles, California. (Photo by Ari Perilstein/Getty Images for LTLA)
HOLLYWOOD, CA - NOVEMBER 08: Actor Justin Theroux (L) and actress Jennifer Aniston attend the Academy Of Motion Picture Arts And Sciences' 2014 Governors Awards at The Ray Dolby Ballroom at Hollywood & Highland Center on November 8, 2014 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)
TORONTO, ON - SEPTEMBER 08: Actor Justin Theroux (L) and actress/executive producer Jennifer Aniston attend the 'Cake' cocktail reception presented by PANDORA Jewelry at West Bar on September 8, 2014 in Toronto, Canada. (Photo by Alberto E. Rodriguez/Getty Images for LTLA)
TORONTO, ON - SEPTEMBER 08: (EXCLUSIVE COVERAGE) Actress/Executive Producer Jennifer Aniston (L) and actor Justin Theroux attend the 'Cake' premiere during the 2014 Toronto International Film Festival at The Elgin on September 8, 2014 in Toronto, Canada. (Photo by George Pimentel/WireImage,)
NEW YORK, NY - JUNE 23: Justin Theroux and Jennifer Aniston attend 'The Leftovers' premiere at NYU Skirball Center on June 23, 2014 in New York City. (Photo by Walter McBride/Getty Images)
Justin Theroux and Jennifer Aniston attend HBO's "The Leftovers" season premiere at the NYU Skirball Center on Monday, June 23, 2014 in New York. (Photo by Evan Agostini/Invision/AP)
Actors Justin Theroux and Jennifer Aniston attend HBO's "The Leftovers" season premiere at the NYU Skirball Center on Monday, June 23, 2014 in New York. (Photo by Evan Agostini/Invision/AP)
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So, does Aniston ever join in?

"No. Jen does not play the game, and doesn't understand why I play the game, but she allows me to," he said. "She's nice enough to let me go away for a couple hours a couple times a week and play."

WATCH: Justin Theroux on Married Life With Jennifer Aniston: 'It Does Feel Different'

Well, that's what marriage is all about!

Watch Theroux gush even more about his wife below.

Justin Theroux Explains 'Great Feeling' of Calling Jennifer Aniston Wife

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