As a fat chick, I can reliably say that guys don't date fat chicks. They just don't. In fact, when I was younger I was constantly bullied by the "hot" guys because I was overweight (probably due to my undiagnosed Cushing's Disease). Now guys don't even look at me or ask me out, even the nerdy guys.
There was a period of time a few years ago that my pit tumor stopped producing excess hormones for an unknown reason and I was able to get down to 145 pounds and was extremely athletic. My Cinderella at the ball beautiful period only lasted a very short time, but when guys look at those pictures I see their faces light up, then they see me now and I'm a complete turnoff.
So those of you that are overweight and have found good men, good for you, you are extremely lucky.
I know I'm facing the rest of my life being alone and it sucks.