Confusing signals from a girl I like. What's going on?

I've been talking to this girl that I had a crush on when I was younger. I went to see her at the mall and stuff, and I'm not sure how she feels about me. I hinted that I liked her, but she has a boyfriend, and shes been with him for like a year, hes the first one. Two days ago she asked me if I still liked her, and what's to like, so my AIM stopped working and I wrote her a little message saying that I cared about her and all. She replied and said I was sweet, talk to you on AIM later. Well yesterday (day after that) instead of the Super Bowl I talked to her on AIM from 5 to 8 30, then I called her because she was saying she didn't lok good and no one else thought she did either. So I called and tried to explain to her that I did, and she needed to chill out. We talked for over an hour, and things were pretty good. The weird thing is, everytime we talk, she doesn't fail to mention her boyfriend. When we were on the phone, she was complaining that he only said she looked good once, and that was because he was high, so I told her that was a problem. Then she said he said he would never leave her, but she doesn't know if she can believe him. Now today she did me a favor by talking to someone (long story), but she was making up a fake identity, so she asked if it was okay if she said she was my girlfriend, and i said sure. Then she started talking about this kid that we went to school with, and how he's been with his girlfriend since */*/**. Then she said pc4pc since I was bored and got off without saying anything, which she's never done. I know that was a lot, but I'm sooooo confused, I can't tell what she's doing, I'm no guru at this stuff. Any ideas what's going on? My friends just tell me she's effed up, but I can't take that.