Does he even want to be with me anymore?

I’ve been with my boyfriend for 6.5 years now.

We’re engaged but I find the word fiancé weird so I just don’t use it.

Lately, he’s made hurtful comments here and there about my weight/appearance, the house being dirty, literally anything he can find to complain about, he will.

I told him the other day that he seems unhappy with me and I think we should talk about whether he wants to be with me and he got mad and told me that I don’t have any right to tell him how he feels????

I’m hella confused at this point. I just don’t understand how you can be happily with someone and complain about them every chance you get? Am I overthinking this?