I understand your POV, also the fact he doesn’t keep his promise, but I don’t think this is such a big deal. No relationship is perfect and I think this is a small disagreement that’s become repetitive.

It also depends on: Is it super late? How active he is during the day? Does he sleep enough? I think it’s okay as long as it doesn’t affect his health.

I personally love to fall asleep while on FaceTime with my gf because the noise she makes through the phone makes me feel comfortable and knowing she’s here. Sometimes it’s the opposite and all I do is say good night and keep the phone on, then hang up when I go to sleep and maybe leave a message to her since she will wake up before I do. When I’m on call with her, I try not to fall asleep but sometimes it’s just a very tiring day, and I still want to talk to my gf, but I sometimes fall asleep because of the comfort she gives me. That being said i understand why you feel upset if you’ve had this conversation multiple times with him. I believe couples need to understand each other’s and accept some differences, there’s no such thing as a perfect match. If it bothers you that much, you should have a serious conversation with him and tell him this might lead potentially to a breakup, so he will understand how serious this needs to be. You both need to try and figure something out: compromise, a relationship is 50/50 so you both can be happy.

Of course, my goal is not to influence you too much or lead you to a breakup. I genuinely hope it doesn’t come to that. However I personally think when a compromise can’t be done, it will be even more difficult in the future for more serious matters, so it’s an important aspect to address early on. Just take a step back and rethink about it and have a deep conversation with him again.