Justin Bieber and Hailey Baldwin jet-skiing in Miami on June 14, 2015. Credit: INFphoto.com

As long as she loves him. Justin Bieber opened up to GQ in his March 2016 cover story about his fascinating relationship with model Hailey Baldwin, and the real premise of his smash single "Sorry."

Biebs, 21, referred to Baldwin as "someone I really love" in the mag's preview of its full cover story that will be published on Thursday, February 11. "We spend a lot of time together," the "Purpose" crooner added of Stephen Baldwin's daughter, 19.

The pair share complicated friendship circles that include Kendall Jenner, Gigi Hadid, Taylor Swift and Bieber's most-famous ex-girlfriend, Selena Gomez. To kick off the New Year, Bieber and Baldwin enjoyed a cozy vacation in Anguilla, where sources told Us Weekly that she convinced the notorious playboy to be monogamous — and even gave him an ultimatum after learning about his headline-making fling with Kourtney Kardashian.

“Justin has never had a woman act like that before,” a source told Us of Baldwin's demands. “He couldn’t say no. So he’s been seeing her again and is with her all the time." 

To show how serious he was about his longtime pal, Bieber posted a photo on Instagram in early January of himself, mid-makeout with the beauty; like the pop superstar, Baldwin also documented the romantic jaunt with steamy posts of her own.

In addition to touching on Baldwin, Bieber also revealed to GQ the meaning behind his number-one hit "Sorry" — and contrary to popular belief, it's not a formal apology for, well, his ridiculous antics. "People ran with that," Biebs speculated. “That I was like, apologizing with that song and stuff. It really had nothing to do with that. … It was about a girl."

Though he didn't go into specifics, Bieber's ex Gomez is the March cover star of another magazine, and she shared some new details about their now-defunct romance. 

"At first I didn’t care,” Gomez told W about the constant interest in their romance. "To me it was: I’m 18, I have a boyfriend, we look cute together, we like that. Then I got my heart broken and I cared. Because people had no idea what was going on, but everywhere it was a million different things. I was kind of in a corner, banging my head against the wall. I didn’t know where to go."

While Bieber acknowledged his past behavior to GQ, he wouldn't change how he went about his past. “Everyone when they start growing up realizes, ‘Man, I did some dumb s--t when I was younger,’ ” the "Baby" hitmaker said. “It’s not just me. … If I could go back I wouldn’t really change much. I think it’s all my journey. That stuff made me who I am.”

Can't get enough of Us? Sign up now for the Us Weekly newsletter packed with the latest celeb news, hot pics and more!