Most women have an ideal weight. Women will date men heavier than them but will not date men thinner than their ideal weight.

I'm 5'8" and 190lb. I'm an athlete, 10% body fat, muscular, decent face, good personality. I don't have a lot of luck. I can count on one hand the number of women who have expressed interest in me. I think it's because I don't have a high enough gpa and I'm not white. But I think most women just prefer heavier men than skinny men. They will prefer a fat guy over a skinny guy but they will never date a really skinny guy. The skinny guys have it the hardest when it comes to dating.