I'm with the new guy. This is funny. Here's how I analyze this situation: you are not very attractive, so that's why the dude is denying it. You are a female, he was horny, and you're easy (that's why he did it). I guess you're the one who told everyone he messed around with you, so it's your fault in the first place.
And if you want to copy off of some shitty musician and dress like her, that's your problem. Did you not think you would get a razzin for dressing like Avril Lavigne? Jesus Christ.