Things have gotten serious quickly!

Justin Bieber brought Selena Gomez along to his hockey game at the Los Angeles Valley Ice Center in Ventura, California, last night, and he gave her his Devils jersey to wear after the match was over. Such old fashioned courtship! The two headed back to the "Come & Get It" songstress' Studio City pad for a sleepover, but we doubt there was much sleeping going on!

There's no denying that they're a couple again, and it's gotta sting for The Weeknd.

Although the Starboy was OK with them initially getting back into contact and being "friends," he quickly changed his tune when he realized his lady love still had feelings for her ex. "He trusted Selena, but he really didn’t trust Justin," a source dished to Us Weekly.

There are more than a few people in SG's camp that are weary about this reconciliation, but The Biebs hopes to prove he's a changed man.

"Justin is aware Selena’s family is not thrilled they are hanging out. They think he caused Selena a lot of grief. Justin hopes he can prove to them that he has changed. He has changed a lot in the past few months. He is a very different person. They have a lot to talk about and are having fun catching up," a source dished to People.

If they're not boyfriend- girlfriend officially, it's certainly on the fast track towards that soon.

"Justin always had her heart and attention. He was always her soulmate and her one true love. Selena and Justin realized it was time to grow past their history and move on. They’ve grown up a lot in the past couple of years and are mature about the situation. It’s definitely a possibility that they could get back together. It’ll be a long situation and there wont be a decision made tomorrow, and It’ll be a lot of back and forth, but ultimately, they’re friends think it will end up in that direction," another source told Us.

This Jelena reunion is the biggest surprise of 2017!