Hurt feelings

I don’t normally get my feelings hurt or should i say let my feelings get hurt and words dont usually get to me but the my boyfriend just told me he didnt give af about my feelings . It all started with me having a convo about milk.. ikr? over milk? Anyways, i was like im just gonna have a glass of milk tonight and he was like theres enough for a bowl of cereal and milk. I was like no i just want the milk lol thats what im gonna get. And he argued that no, if im gonna use the milk, to eat cereal with it. Im like you really gonna tell me what to eat? He said well in this situation yea. I laugh and said he was CRAZY thinking hes bout to tell me what to EAT. Anyways he said “not if i get to it first” and we looked at eachother and ran to grab the milk... after 2 mins of play fighting for the milk i grabbed a cup he uses for beer pong ( i didnt know it was for beer pong ) and he calls me a dumbass for grabbing it. So ofc i get mad because there is no reason for this. Its not my apartment and i didnt know. So im just like dont call me a dumbass why are you being so rude , i dont care about the milk anymore i dont want it. He said “ ok i dont care, im gonna make me that bowl of cereal. I could care less about your feelings rn” and then i just sat there and couldnt help but to feel so upset. I know alot of you are gonna say “leave him “ “ your dumb for staying w him” and yea maybe i should, maybe i am dumb for not leaving. I just dont know why hes like this?!! Then i just came to the room and cried and he comes in saying hes sorry and i told him he cant be talking to me like that. He said he “ didnt mean what he said” 🙄