Will my bf want me back?

My bf broke up with me about a month ago(we go to different colleges, we are long distance) with very obsecure reason. Then I went to his place two weeks ago and stayed there for a week. He was really sweet to me and we were back together. For the past 2 weeks, we webcamed a lot everyday and he did seemed pretty tired from all his coursework and stuff. Then last Friday, he was cleaning his fraternity house for an entire afternoon and during that time I called him like 5 times but he didn't call me back until 9pm. I was kind of annoyed. I don't like being ignored. Even if he was cleaning all the afternoon, he could've given me a 2-minute call telling me he's gonna call me late that night. But he just ignored my calls. So I kind of got upset when we talked later on. And we broke up again. My thought is he was probably exhausted at that time and I shouldn've controlled my temper. So do you think this is the reason? If I'll just be sweet and supportive to him again, does he want me back?