Can Justin stay faithful?

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Justin and Hailey Bieber 

Justin Bieber questioned whether or not he'd be able to commit and stay faithful to now-wife Hailey before he proposed to her.

The 25-year-old singer married model Hailey in 2018, with the pair celebrating their one-year anniversary in September with a bigger wedding ceremony alongside friends and family.

Since then, Justin and Hailey have regularly shared gushing posts to one another on their social media pages, with the Sorry star opening up about his doubts about his decision to pop the question to the 23-year-old beauty during an appearance on The Ellen DeGeneres Show, airing on Tuesday.

"I was extremely nervous. I felt like in the past, we had talked about you know, me asking the question, and I felt like she would say 'yes,'" he explained. "So I wasn't really nervous about the saying yes, but I think I was more nervous about 'Am I gonna make this commitment?' Am I able to make this commitment as a man and be able to honor you know, what I say, you know because that's a serious commitment, when you say you're gonna love someone for better or for worse and like, be faithful... That's huge. Am I able to do that? And so I think that was really what I was battling with."

But Justin, who also counts Selena Gomez among his famous exes, added that once he thought about it, he realized that Hailey was the one he wanted to spend the rest of his life with.

"I finally was like, 'You know what? I'm gonna make the decision and follow through with it," he smiled. "Be a husband, and you know, this is what I've always wanted. I'm gonna just choose this woman and just do it.'"