Degrading partner

What would you do if your SO told you that you were “mid” in bed?

We have been together for almost 6 years and have two kids together well this afternoon we got into an argument and when we fight his go to is always putting me down, degrading me and trying to hurt me (not physically but emotionally) well today his go to was telling me I’m “mid” in bed. This makes me feel so bad and disgusting. We have sex very regularly and he’s never mentioned this before. I’ve only slept with a couple guys in my life so I know I’m not obviously the best he’s probably had but I never thought he would say something like that. It makes me not ever wanna have sex with him again. And seriously makes me feel absolutely horrible about myself 🥺😢😭