Ever seen Good Luck Chuck? Because I feel like that movie is my life :/?

I really feel that way, I do. Not in the 'once he has with a girl they find another guy and get married' way but similar to that. I'd like to say I've been out with a girl but I can't really, as the only girl I ever 'went out' with adamantely denied that we were going out to anyone who asked or she could tell. Anyway, every girl I have either liked and been rejected by or liked, had a date with and got told the usual 'It's not you it's me etc' **** has from what I can see, found their life partner afterwards. And I'm not overreacting. EVERY girl I have ever liked, asked out, dated etc is still with the guy they went out with after rejecting or dumping me. And considering I haven't even really talked to a woman in over a year, it makes it suck even more. I have a real problem with actually getting girls to like me in that way as once they inevitabily find out about my medical history (I had a brain tumour when I was 8 therefore am only 5'4 and a lot of my hair is missing and I have a giant scar on the back of my head from my op) I am either launched straight into the 'aww we feel so sorry for you/are you ok? etc' zone or they just freak out and don't want to know me at all. And then the ones that do find every reason under the sun to say no to or break uo with me and then find their current boyfriend. My life hasn't been great and I'm not particularly angry or upset about that, I just wish for once I wasn't the stepping stone, the guy who had cancer, the single one out of all my friends. It makes me just feel like a freak, like I was purposely brought to this life for people to laugh at and **** all over me while I just get to see everyone else getting what I can never have.