help!!!!

Makenna

i’ve been with my boyfriend for 7 months now and i have had to deal with his best friend the whole time. his friend is a douche bag not only to me but my boyfriends brothers. my boyfriend just came back from the army and they next morning his best friend asked him to go spend the day with him and none of us have seen him for 4 months. then my boyfriend said he was going to hang out with his family and he’s like i get it i’m not part of the family and his little brother goes “no your not no one likes you”. After that, he told him to take him off of speaker and my boyfriends phone didn’t work unless it was on speaker so he made him leave to talk to him. the little brothers out their ears up against the door and the friend told my boyfriend to miss his little brothers band concert to hang out with him. he’s said some stupid things to me and shoved a juul my bf’s little brother mouth and me and all of his brothers can’t stand him. i need advice on how to handle it.