I kinda know how you feel. I'm 22 and a senior in college. I have a PWS on the left side of my face. I can't really hide it, and I haven't had any treatment at all.
Many times I feel hideous when I meet other people or when I am at parties. I know I can't go up to a girl at a party and expect her to be physically attracted to me right there.
I've dated a few girls but I don't really know how they felt about my birthmark; I guess I never asked them that.
But, whenever I'm with my friends, who accept me for who I am, I could forget that I have a port wine stain on my face. It felt like I was normal, no different from any other person.