Disgusting man from last night

So last night it was my 18th birthday and I'm from England which means I can go out clubbing, so I did with some friends. I wore this outfit which I fell in love with when I saw it. I was like yes I have to have it! But when I was out I was on the dance floor and my best friend was pulling me through the crowd to the toilet, as she was doing so someone thought that it was okay to put his hand up my skirt and touch my vagina. Now luckily I decided last minute I was going to wear a thong even tho small I still had something on because I felt more comfortable with wearing a thong instead of going camando in an outfit like this. But I want to know what on earth he was thinking and WHY HE THOUGHT THAT IT WAS OKAY?! I feel absolutely vile because of it and kind of feeling like it was half my fault for wearing this outfit but I know it's not because I should be able to wear what ever the hell I want and not get fucking touched like that. He is a disgusting disgrace to humanity going shit like that to me and maybe other women too, who knows. He made me feel fucking vile and he's getting away with it because I have no clue who he was. Makes me wish I knew who he was just so I could slap the shit out of him for being a vile nasty little cretin. Fucking disgusting.