Avoidants and Negging?

Is negging an avoidant thing or was my ex just a d*ck? My dismissive avoidant ex gave me the pet name “uggy” and would call me ugly all the time (in a joking manner, but ouch). When I’d call him out for being rude/disrespectful he justify it by telling me it was funny, because I was so beautiful I couldn’t be ugly. Towards the end he was negging all the time, it seemed like he was intentionally trying to tear down my confidence and self esteem.

Did anyone else’s avoidant partner do this? He never gave me compliments and when I’d compliment him, he’d respond with negging. Thoughts?