/cgl/, how do you handle it when you really, really hate another cosplayer? I know most of you out there have at least ONE cosplayer they intensely dislike, and I want to know how you handle it.

I'm a "model" on Cosplay Deviants (inb4 ugly/attention-whore/not real model/etc) And while I get along fine with most of the other models there, there's one I can't stand. I mean the amount of hatred I feel for this girl scares me. She's never done anything wrong aside from being an attention starved poser (which let's face it, most of the girls there are) and I talk to her all the time putting on one hell of a poker-face. I've always been into guro, but recently have been having very violent sexual fantasies involving her, and that was the final straw.

I need to come to terms with my hatred somehow, in a non-violent, non-bitchy way. I've already been to therapy several times for anger-management in unrelated incidents, and I'm wondering if I should go back.

tl;dr what do you do to handle a vendetta?