<human>: Condense the text into a few key points

Hi Reddit, I am not good with words and this relationship is a bit weird so I'll try to keep it brief. 

I had been dating my gf for about 4 months then we broke up because I moved to another country for the university. Long distance was too much, as well as she always demands my attention and I can't possibly provide that. 

A year later we met and decided to try again, the spark was gone but we persisted and it was alright, but this long distance thing (apparently feelings can make you do irrational stuff) is no good as we can only skype and I can't afford to always buy her tickets to come visit. She continues to crave my attention, she gets angry when I tell her that I can't afford to buy her stuff because I am an average students who does everything to support himself. She acts a bit crazy and whenever we talk about it she starts crying and acting bizarre. 

What I like about her is that she is incredibly beautiful and cute. I get butterflies just thinking about cuddling with her. However, the irrationality and putting up with a lot of her stuff is very overwhelming. I feel very bad because I initiated the first break up as I got too fed up with her stuff that I even got depressed. Then I proposed to start it all over again and now I am thinking about breaking up again. The break up had it's tool on her and I am afraid to hurt her again, but I realize that it is very difficult to sustain this relationship. I just really don't want to hurt her.
<bot>: Girlfriend is gorgeous but a bit insane + long distance + I am a selfish prick and I don't want to be one.