I think I'm to fat for him

So I just started dating this guy for about a mouth and he weighs about 120 pounds and I weigh 285 pounds...(and i've quit loseing weight because it's to hard.) so yesterday we were talking and he said to me "how much do you weigh" so I said "I'm not telling" and he was little pissy at me because I said that. But I just need to know if anyone is a not bigfer and has a girlfriend or boyfriend that is thiner then them?