My bf called me fatass

i have a 2 year old daughter with my bf we’ve been together for 5 years and I gained weight from my pregnancy and haven’t lost it I had started losing weight I lost 30 pounds but since I started a fast pace school program I gained some of the weight back but anyways we were at his moms house for a dinner and I was in his sisters room with our daughter and he came and asked if leaving in an hour was okay bc I had told him I was ready to leave bc I have work in the morning I said it was okay which would have been at 11 & said well then how about 12 & I said no and said cmon and I was like if you wanna stay that’s fine but I’ll go home with the baby and he said In what car and I said our suv and he said joking around good luck getting the keys and I said I’m serious I’m already tired and he was walking away & said I’m serious I’m tired he sad yeah yeah fatass . & I said okay. & he came back and he laughed and said he was just kidding but Idk haven’t talked to him much since then and he apologized when we got home but I don’t know how I feel at all. Like my feelings are hurt and today he said what’s wrong you haven’t talked to me & he’s like love me bc I’m always affectionate. But I’m just not feeling it anymore. I feel like I don’t even wanna be with him but is it crazy to want to leave someone over a comment? Or maybe I just feel like if that’s how you feel about me why even be with me. Why be with someone who thinks I’m a fatass. Mm Iuno 😢