Gonna be honest with you, my pal and I used to do this to ensnare girls.
'I am an emotional wreck. The last person I had a relationship with really runied me'
'There is no way I can trust another woman again'
'I cannot maintain an erection. I haven't cum in years, so don't even bother'
At this point, I have to say
a)this ploy has a massive success rate. a lot of women are attracted by vulnerabilty
b)its a cunt thing to do. I am in a very reflective mood at the moment and was just reminiscing. don't hate me.