<human>: Give me the gist of the text in a nutshell

Hi Reddit, I am in a tough spot in my life right now and need some advice. I dated a girl for a year and a half, and i am still in love with her 3 years later. This has been affecting everything about my love life and my general happiness. I have tried to move on numerous times, and it just doesn't seem to work for me. I have hit the gym (lost 30 pounds so far), tried online dating, and had girls have romantic interest in me. Even after 3 years, it still feels fresh in my mind and i just don't have interest in any other girl. 

We dated for a year and a half. I had just recently graduated college and she was a sophomore in hers. We hung out and eventually started dating. She went home for her christmas break (she is from across the country) and when she came back, she had told me that we had to end our relationship. The only reason she gave me at that moment was that it was just how she felt. I later found out that she developed feelings for another guy she used to work back home during her Xmas break and things happened between them. I was devastated and stopped talking to her for a long time after that. 

I never stopped thinking about her and how much i missed her even though it ended that way. Eventually we started talking again and she said that she was now dating this guy(long distance). We started hanging out again and that led to her staying over my place again and being intimate. She graduated college and moved back home and is still to this day seeing this guy. She has flown out once to see me and i have flown out to visit her, one time, as well. Each time we fall back into being really close and intimate. She is still with this guy even after cheating on him with me numerous times. 

I guess if anything, I just needed to write this down and vent. Any advice or tips would be great. This is a throw away account. I never tried publicly talking about it, and maybe this can help me with the closure. Any questions are welcome.
<bot>: I have no balls to move on after the girl i loved cheated on me. I am still in love with her. I just want to move on.