Last april i met a girl at school, and it just so happened she was from the town next to mine also. We started hanging out and when we got back from college, continued to hang out and ended up dating. I fell in love with her, and she fell in love with me. I was in a 4 year relationship that i had gotten out of about 6 months before i met this new girl and the feelings i had in the previous relationship didnt come close to the ones i felt this summer. Anyway, we started dating in may. Around july, she started to hang out wit her friends more and more; to the point where she would blow me off night after night to hang out with her 2 girl friends and 2 guys. They went out a lot together, and she became really good friends with one of the guys; close to the point that he told her that he had a lot of feelings for her.(i had no idea any of this was happening) after three weeks of getting blown of constantly, i told her if it didnt change, i was done. A week went by, and she was back at. she was blowing me off to hang out with this guy again. I ended the relationship, and stopped talking to her. three weeks ago, we started talking again, started hanging out, and shes been putting in a huge amount of effort to show how sorry she is for what she did. She tells me that she has never ever done anything like that before and she got caught up in going out with her friends. What i dont like is that after i ended it with her, she kissed the guy she became good friends with and he asked her out, she said no..not that big of a deal, but still bothers me. My good friends dont like her and my family doesnt like her because of what she did over the summer..would it be a mistake to take her back and see if she is truly in love with me and isnt like that, or if what i saw this summer is really who she is?