Does she still have feelings for him?

Okay this is how I met this girl we were in the YMCA and we start talking and then she started talking about her ex boyfriend and stuff and she told me that she dumped him I never talked to her ex boyfriend so yeah that how is started but then after a month I asked her out and she said ur kidding and I said yeah the second day she was like were u serious when u asked me out and we were alone so I said yeah I am in love with you and then we start going out and then after time we start making out we really love each other and we are planning to have sex anyways I talked to her ex yesterday and I asked him how was his relationship with her and he was like she never was my girlfriend and then I smiled and said you don't need to lie and he was like yes she use to be my girlfriend long time ago and I said did she dump you and why and he was like she never dumped me it just cuz I moved away from her now we all live in the same neiborhood so yeah anyways I was checking her fb and she was talking to him and he asked her why she goes out with me and yeah then he said he wants to leave and she was like no stay and talk to me I am really bored I really missed you << she said that and he was like you gotta a boyfriend and she was like I know but I miss you and we should be friends and then he said he wants to go and she was like no stay and talk to me friend and then they talked on facebook and that was like 1:20 at night really late lol I asked her if she still like him and she was like I don't and she kissed me and she changed the subject do you think she still have feelings for him? and what should I do? btw she is not my first girlfriend she is my sixth