I understand how frustrating it is to miss someone and not having enough time to do/get to spend things with (even online).

Me and my boyfriend live in a 6 hour time difference. This scenario (no time to talk to each other) happens to me and my boyfriend every few months because he's very busy studying (& hanging out with friends). Before, I would get mad at him and tell him that it's so unfair that whenever he gets free time, he would rather spend it with his friends/family rather than talking to me and catching up.

So basically he prepares for his test 5 weeks before the test dates. During those weeks, he studies for 14-17hours every day (including going to class), and whenever I video-call him, I feel the guilt in him that he'd rather study than talk to me. Also, his friends/family would invite him to hang out on the weekends and he would gladly go and don't really regret it (unfair to me because he makes it obvious that he would rather study and/or hang out with his friends/family rather than talk/spend time with me).

I realized how important it is for him to have quality time with his friends because he goes to class and then going home to study again and so on. It makes him feel normal and he at least feels better because he needs social interaction (knowing that I'm not there personally) for his mental health as well. It took me a long time to realize and understand that. Now, I have a schedule of his classes and his test dates so I know when I'm gonna "adjust" and deal with the few minutes of quality time than what we usually do. It doesn't happen often, only during his study days. We make sure to update each other regularly.