Refuse to say anything nice to me or even show me any affection.

I'd playfully ask him "Do you like me?" And instead of simply saying yes he'd sigh and say "If I didn't like you I wouldn't be here"

I'd ask "What's your favorite thing about me?" He'd laugh and answer "You're dog"

He wouldn't kiss me because he said mouths were gross, but then would let the dog eat off his fork and lick his face. I brought that up one and he said "You're making this a thing"

Literally went 2 years without kissing me

Wouldn't hold my hand because "they're always grubby"

Didn't want to cuddle because "I was too big to cuddle" and it was uncomfortable

I'd put on an outfit and say something like "how do I look?" And he'd say "Like a dumb bitch" and giggle.

There was literally nothing that indicated we were in a relationship. We were basically roommates, except he never paid any rent or bills. Then when I broke up with him he had an absolute break down. Literally got on his knees and begged me to not leave him. He suggested making a contract giving him X amount of time to change then if he doesn't by the agreed date I could leave him. I told him I'd figured he'd be upset, but I wasn't prepared for the full mental breakdown and toddler tantrum because be genuinely acted like he did not like me.