<human>: Can you summarize the given text in a few sentences?

We met freshman year of college. She was in a relationship, and I had been single for almost a year from a long term relationship. We started out as friends, kind of. I knew I liked her and I flirted a lot. I made it very evident and when we talked about her relationship she said it had been bad for a long time. Long story short that  ended and I started dating her. She was great for a while but then became very controlling. She wanted to know where I was all the time and who I was with. If I went out with friends I was accused of ignoring her and not caring. This was with other guys. If I met a girl in class or studied in a group that had girls in it she would accuse me of wanting to flirt with other girls. 

A year later she ended up going to another college for a better program. This was somewhat good because it gave me a little freedom without her being too far away. We have broken up briefly a couple of times. The problem with her is that whenever there is a disagreement, I am completely shut out. No calls, texts, or even responses to what I send. The longest period of time this has gone on has been 2 weeks. 

Jump forward to present and we are still long distance. It has become a problem because she is always expecting me to be able to drop whatever I am doing and come visit. I ask her to come down and she says she cant because she is busy while simultaneously blaming me for being selfish and not wanting to come see her. I am also very busy. 

Another thing weighing heavy on this is family problems. I will be vague but essentially we had very similar health problems with our siblings. So I feel like I need to stay in some way to support her through that. But I don't know if she will let me be her friend if we break up. 

The problem I have is that I love her so much, but it is wearing me down to always be the one having to support, assure her of our relationship and compromise. Sex is great.
<bot>: How do I maneuver this breakup? I want to be friends but I doubt that will happen. Is it bad enough to leave?