Most Helpful Guy
I wonder what would have happened if my wife (then - girlfriend) was so self-critical and ended our relationship.
What I'm trying to say is that some guys just aren't into supermodels, they are into average looking, shy girls. But make sure you don't bug him constantly with "ohh I'm so ugly why are you even dating me" - it becomes annoying pretty quickly.
Most Helpful Girl
Guys like different body types. There's a reason so many actually obese women not just a bit chubby, are in relationships or married, down to stick thin women in relationships. I don't think there's a body type that's disliked by all men, there are chubby chasers, there are men who like curves, there are men who like very thin, there are men who like slim. Whatever your body type, somebody will like it and somebody else will think it's ugly. Who cares.
But, with this attitude, you could chase guys away. It isn't fun being with somebody who dislikes themselves so much. Learn to love yourself! And also just realise that literally the only thing you can be is yourself, and men can either take it or leave it, and that's the way it is. No matter what you do, some will take and some will leave. So just say fuck it and have fun instead, no point stressing over this shit.