this might be a little long, so here goes. I dated this girl for 2.5 years and we lived together for 2. We had a very immature relationship during that time, and broke up because of it. It'd been a year since I saw her, and I've matured quite a bit since then. I saw her about a week ago, and she was hugging me and kissed me, but has a boyfriend. She told me how bad he is, and how she's constantly mad at him. We didn't have sex, just spent time together. She acted like she was into me, but kept saying "i have a boyfriend". She goes back home and tells me even more about how bad this dude is, and that she wants to be single. i tried to give her unbiased advice, but she just doesn't want to hear it. She talks about how they are in love, and it doesn't matter that he makes her feel like shit, cuz she loves him. Today i realized i just can't be there for her. I don't want to let myself slip back into the immaturity that goes along with this. I spoke my part, and she does nothing but complain to me. I just don't know if i am making the right decision, i feel so horrible telling her i can't talk to her. I just want some advice on what you guys think. Is there any way for me to get through to her? Oh, and our relationship was constant arguing. I pretty much stayed single for a year to better myself and that's why me talking to her again bothers me so much with her being the same way. Any advice?