Weird Family Birthday

So my boyfriend sister (on his mom side) birthday was yesterday Sunday , And her sister (on her dad side) came to attend and it was very much a lot of tension like let’s call the sister (on the dad side ) deja & sister in law cara . So it was cara bday Sunday and her sister deja came and we all was just greeting her and my mother in law was introduced me to her and she started off as nice but she was like hay and I spoke back then his mom was like yes this is let’s call my bf , Dee. So his mom was like this is dee girlfriend, his queen & word and she was like oh ! Dee had a gf and I’m thinking like what made her say that , Then she was like tell him to bring me some when he get off , which makes me think like is there something he didn’t tell me or is it something going on with them anyways it gets crazyyyy , forgot to mention she brought her bf , anyways he gets to the house she looks laugh and look down they didn’t speak to each other like he said hey to everyone else except her and she didn’t say anything to him like they both looked at each other , Am I losing it or what y’all think ??? Help pls