Facebook Comment 😢

I just had a baby 3 months ago and my boyfriend commented on a girl’s Facebook picture that she was, “sexy asf.” I’m so pissed off! I’ve told him previously to not comment or like other girl’s pictures because it was disrespectful to me and our relationship. Furthermore, he hasn’t called me sexy but had the nerve to call another chick “sexy asf.” Of course he says I’m overacting and it was a dumb comment and he meant nothing by it 🙄 He says he never had a conversation with the girl, it was just a comment.. I’m ready to kick his ass out over this comment. What do y’all think? Am I overreacting?