<human>: I am in a very complex situation right now. I've been feeling out of touch with my girlfriend and I was hesitant about living with her but we were going to be living with two other roommates until they backed out, leaving us with not much choice.
The reason I want to break up is that I feel suffocated, she's all over the place emotionally and I feel like I'm always on edge around her. She can be mean, and then feels bad about it and apologizes, but it's gotten old. I've also not had much experience with dating, unlike her, so I want to test the waters and see what else is out there. I really do care about her and I don't want to lose her or us ending up hating each other, since we were friends before we dated. We're going to be apart for the summer, so I'm wondering how/if I could break up with her and we could still be civil roommates with each other.

Could you distill the essence of the text into 1-3 sentences?
<bot>: I want to break up with my gf, but we pretty much have to be roommates next year. What do I do?