like a girl (woman) who is in a funny relationship?

MEN & WOMEN PLZ PLZ HELP Ok 1stthing is tht the girl hs tld a few othr guys tht she in a reltionshp but she nver cme out and said it to me strigt to my fac. Only reson I nw her BF is stupid ( and tht's not me being a dik) becos he showd her a msg tht he gt frm anothr girl and said to hr I cod talk to her instead of u. I mean who says that! The only way I nw ths is becos I over heard her talkin abut him with a female friend. She has also talkd abut him to one of my friend saying he aggressive. Ok the positives are Ok we do get along and we have exchanged phone numbers and we talk over whts app. We have been been txting Xxs&Oos as well as I have been texting her some what flirty txts. I also try to txt her everyday. The other day she was upset and I said 'if you ever need to talk to anyone am more then happy to listen and I won't be judgmental.( do you think it's to much to quick) she has even said I think I am nice in front of a frnds If she was my GF I would worship her eryday