Do you believe in the fat girl syndrome?

I am overweight by about 35–45 lbs. When I confide in my friends that I want to lose weight so that I have more dating options, they always try convince me that my weight is not an issue. Similarly, when I try to tell them that as a skinnier woman, I had many more men talk to me and try to be my “friend” and in general, be nicer to me, I get the same disbelief. Sure, I am older now, but I still believe that my weight is the main reason I am invisible to men. I don’t get second looks and to be honest, they rarely take a first look – they look right through me. Women almost always deny this happens and I even find men don’t like to admit it, but it’s true, right?