u/FaithlessnessIll3638

We've been official for a month now, but we have been talking for about 3 months daily almost. And one thing that I noticed about her is that she doesn't communicate about what bothers her or why she's mad unless I notice it and keep asking her what's wrong. And since we've started talking, I've had sleeping issues because of the time zone difference (she's 7 hours behind me), so sometimes I would fall asleep when talking with her at 2 or 3 AM, just because she comes back at 11pm for me from her highschool. And it feels like she gets mad or pissed whenever I fall asleep or even tell her that I'm going to sleep, sometimes she doesn't say goodnight or anything when that happens which she usually say goodnight. Or she just completely ghosts me for a couple of hours when she wakes up the next day (which she usually texts me the moment she wakes up when there's nothing wrong). And recently I've been telling her that I'll go to sleep and if you need anything then call me, and sometimes she does call but I never woke up, maybe because my sleep is messed up or I was just tired but I genuinely didn't hear her calling at all when she did, sometimes I even forget turning on my notifications and fall asleep so when she calls there's no way I would wake up, and that did happen about 4 times recently, I go to sleep or I fall asleep and I tell her to call me if she needs anything but when she does, I don't wake up until 2 hours later or smth. 2 days ago she called me while I was sleeping because she needed help with something and she was panicking, but as usual, I didn't wake up until 3 hours later and it felt like she was mad at me or smth or it might just be because she was panicking, idrk, but the next day there was this tensioned atmosphere between us, and when she was back from school it was the weekend and we've been waiting for it to come to do some activities together but when I told her she said that it has been a long week and that she's tired, which I understand and I told her alright later then, then we didn't talk for about 2 hours but I didn't like it and I really wanted to break this tension or whatever so I told her that I miss her and we talked together for a bit then she sent me a drawing she js made for my birthday (late gift), which made me really happy and everything was alright and we started breaking that tension and yapping again, until I started feeling sleepy and losing my focus with her so I told her that I'm sleepy and then she told me not to worry and to sleep and that she doesn't wanna yap if I don't want to talk, I told her I don't want to leave but then I fell asleep (after sending mid sleeping messages that no one can understand..) and the next day she just didn't send anything in the morning and kept me thinking until she sent me in another app hours later and when I talked about her not sending anything earlier even tho she woke up early, she seemed annoyed. So idk what should I do to fix that, should I spend less time with her to fix my sleep instead or what and what about her being annoyed now.

TL;DR my girlfriend seems to be annoyed because sometimes I fall asleep when we talk due to the time difference between us. And she doesn't communicate so well. What should I do. And sorry for the yap when it's not really a big deal but thanks for whoever read this