I was close with this guy in college who, though he probably wouldn't say it, is an incel. Total neckbeard 'oh why aren't girls into me' kind of thing. He was convinced it was because he was overweight and nerdy and that women were too shallow to see what a great guy he was. But here's the thing, fat people get laid all the time. If they are a fun, cool, kind (not nice) person, then you shouldn't have a problem. The one thing he, and probably most incel/neckbeards/nice guys need to hear is a quote from the movie The Social Network "But you're going to go through life thinking that girls don't like you because you're a nerd. And I want you to know, from the bottom of my heart, that that won't be true. It'll be because you're an a*****e.".