is my thumb just not on the pulse of other men? am I the only one with this opinion?

I say that you should happily sleep with her, if you are into her and intend to form a relationship (I'm not a casual sex fan at all). It may mess up your band, it may not...I dunno...It all depends on how it works out...one thing I do know, is that sex for sex's sake usually ends up bad (not the sex, but on a personal level)