I agree. There's a CLEAR correlation to my weight (which fluctuates) and women's desire for me. The ONLY times in my life that any women came on to me (as opposed to the typical opposite case) and truly wanted me were when I had been dieting and exercising enough to get my weight down to normal.
That said, men have it MUCH WORSE than women in the sense that women typically WILL NOT make a move or initiate a relationship/sex. Thus, some of you women out there complaining you don't get any might be because men are tired of trying so hard. Make a move women!