/fa/ - Fashion

So i don't know if i'm posting on the right board but fuck it.
I've searched on google my question, without any results shown, so i'm asking you lot this.
I'm 28 years old, 6ft7 (2m) tall, living in the uk, and i got a small issue, my whole life i've never had a true girlfriend, i've had 9 girlfriends with boyfriends/husbands, basically managed to make them cheat on their bf with me, but never managed to get an normal woman to like me, let's say i'm ugly then fair enough nobody would date/fuck me right? let alone women with boyfriends or married. I just don't understand the psychology behind their decisions and why i'm attractive only to married/civil partnered women?
Also excuse my sense of fashion, the pics are before i've discovered /fa/
Cheers