Having some profound girl problems D:?

Well it all started several months ago when this girl became touchy with me and somewhat flirtatious. I did not read much into it because I figured it was probably her personality. After knowing her for about a month, she revealed that she had a boyfriend and did so without much care, so I figured she didn't like me whatsoever. Over the past few months we became very close where we would tell each other personal things, and life was still usual. At this time I kind of liked her, but not enough to act on it. Well then two weeks ago she turned to me and told me that she was having problems with her boyfriend and wanted to break up with him, she then told me she was looking for a new boyfriend and looked into my eyes for a bit. I regrettably played it cool and just tried to comfort her over her problems, but did not reveal anything to her. Well after that she started texting me a lot more and we got pretty damn close, she asked me to hang out with her frequently, and at the same time we were touchy and having a fun time. She then backed me into a corner through one of our conversations and asked me if I had a crush on her, I reluctantly said yes, and then she did something I did not expect. She welcomed the idea like no other, she asked me to hang out with her, and go swimming with her (to see her body), to go on vacation with me, but I suppose she did not reveal any interest in me. So I foolishly took this as if she liked me however, because I figured she would have been much less optimistic about me hanging out with her and such, but I guess I was wrong. I was surprised to find that she was still dating her boyfriend, and then told me that even two weeks ago she was not really willing to break up with him, and that to this day she still is not. She still seems to be discontent with her boyfriend, because he does not want to hang out with her and such.So this is my situation and I am bewildered, I guess I was just wondering if anyone had advice on coping with this issue.