<human>: Can you give me a shortened version of the text?

Sorry for the following wall of text. I've posted on here before but had to remove my submissions due to her finding out my name, and I hadn't thought about making a throwaway account at the time (why the hell would I think she'd go on my computer and check my reddit page?). Anyway, I took the advice I was given by most of you, and I left her while I was on vacation with her after not being able to put up with her shit any longer. We had been dating for 13 months at the time, and for the last 6 months she has not been intimate at all. Called her out on talking with her ex again, found out she still had feelings for him, and I ended it. We both flew home two days later (I didn't care to change flights or anything, since I had already invested too much money in to this trip), and I cut off all communication. After about a week and a half she called me, and said she wanted to meet. Fast forward to her begging for me to take her back, and stupidly I did. 

Here we are, a month later, and I ended it again. Caught her lying to me about the stupidest things possible, and I asked her how she wanted me to trust her when she lies about just going to see a friend? I then asked if she even wanted this relationship. She hesitated to respond, so I got up and began packing her clothes and other belongings, and haven't talked to her since.

I am furious over everything she did to me, because I literally did nothing wrong. I helped her out with school, made everything as happy as it could be for her. I took her places she had always wanted to go (Disney, Niagara Falls, Rock and Roll Hall of Fame), and so on. I was 100% committed to her and the relationship, to the point that I had planned on proposing to her by year's end.
<bot>: Girlfriend of 15 months took me for granted, talked with her ex and still wasn't over him. Treated her amazingly and did so much for her. I broke up with her multiple times and finally had enough of the lies.