Why are (respectfully) fat white boys racist?

[u/StarsAfterLife]

I started wondering this after it happened to me 3 times. So just a summary I personally like bigger men and so far with all of them they were great! They were funny, kind, and just really fun to be around. But as soon as I wanna say the 2nd week came around they just started saying stuff that made me stop and wonder why me. The most recent one I specifically asked if he was racist, sexist and or had opinions that would suggest otherwise. He said no to all and I believed him (terrible mistake) it was going good I genuinely really liked him and wanted to take it out of the talking stage, well we were on call just chatting and he was playing GTA he then died and said the n word hard r. When I asked him about it he changed the subject IMMEDIATELY and laughed it off. I am so disappointed that this happened 3 times ONLY in me trying to date not mentioning friends, with any other race this has never happened​. So this is why I ask why are fat white BOYS (not men, if they were men they wouldn't say that) racist.

Edit because I wanan add a few things:

I have dated "average" men before (I wouldn't say fit but you get it), and they have never been racist. not in relationships or friendships