Can fighting be a reason for your partner to get turned off by you?

Problem/Goal: I want to understand why my partner gets turned off when I sulk or get upset with him.

Context: He told me he gets turned off whenever we fight, but our fights aren't serious. We don't yell or hurt each other, I usually just sulk or become upset when something bothers me

Previous attempts: I've tried to understand his side, but I'm still unsure what makes him feel turned off and how I should handle it.

Hi! I need some advice, preferably from those in their late 20s or almost 30s lol. We're both male and he's 27 and im 21