Well I can't judge anyone I don't know, but as a female, 28, I can say I've made "mistakes." I can't say anyone I know (female) would say they've NEVER slept with someone and regretted it. If so, I'd say that is a lucky person, lol. Do U think it was a mistake, or something she does all the time? I guess it really boils down to what U think, because it really isn't anyone else's business.