Dave at this point id love to say something that would be really mean and call you gay but... that sucks. Girls are fuckin gay and really you don't need to bother any more with her. Historically speaking, however, meeting girls at a gym isn't a great idea. I know you spend a lot of time there, but at a gym girls are all hot and bothered anyways, and then when they leave and go home they calm down and go back to their normal, unfunny, retardedly gay selves. I suggest if you're going to meet girls at a gym do it after they work out, just because of their tendencides. I wouldn't suggest opeth, however, more like... Blood Tsunami.
Always remember, your hand is a better lover than that girl could ever be.