should i bring up my boyfriend arguing with me in front of his mum?

for quarantine i’m staying with my boyfriend at his parents house. just now me and him were outside playing cards nearing the end of a game when his mum came out and asked if we’d like to make mobiles (the ones that hang from the ceiling) and then she went and sat in the conservatory with the door open doing work so she could hear us playing. i went to put a card down then my boyfriend whacked his hand down but i was putting my card down at the same time (we were playing spit) i was then like no i didn’t finish putting mine down and then we started arguing about cheating which happens a lot it’s cards fgs but then his mum went “guys it’s only cards” like jokey but then my boyfriend carried on raising his voice going “youre such a cheat you always cheat you say you don’t because of karma but ...” etc etc. anyway i don’t mind we argued and he was accusing me but i’m annoyed he shouted at me in front of his mum and i feel so embarrassed about it. i don’t want us to argue over it but it bothered me but i know he’s gonna say that i just shouldn’t have cheated (which i don’t think i did!!) and then we’ll just keep arguing. should i just get over it? but if i bring it up we’ll argue so it’s either ignore it or argue. i don’t think it’s that big of a deal but i just felt so awkward and embarrassed after because of his mum so idk

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