No bad blood here!

Shawn Mendes was rumored to be dating Hailey Baldwin a couple months ago, and they even attended the Met Gala together, but now she's back with Justin Bieber, and the singer couldn't be happier for the couple! What?!

“I think that’s awesome. I love them both. They’re both really awesome people. When I first started out, everybody was like, ‘Oh, how do you feel about being compared to Justin?’ I was like, ‘What do you mean, how do I feel?’ That’s the best thing anyone could say to me. He’s the man," Mendes said during an interview with ETalk.

As for Selena Gomez, the other ex in this equation, she's not so thrilled.

"Selena is doing her best to ignore Justin and his dating life, but she is aware that he and Hailey are spending a lot of time together, making out in public and seem to be happy together. Selena is doing her best to not pay attention to what Justin is up to, but it’s impossible, her friends text her and tell her what is going on constantly. She enjoys being single but knowing Justin is moving on still hurts," a source dished to Hollywood Life.

"Selena is sad things are the way they are between her and Justin because despite everything, she still has strong feelings for him. Selena still misses him and thinks about Justin all the time. Selena has major doubts that Justin and Hailey will stay together very long. Selena knows better than anyone how challenging it can be to maintain a relationship with Justin. She wishes Justin the best and hopes he does not break Hailey’s heart by quickly losing interest again,” the source added.

Bieber fever has quite the ripple effect!