I’m in my late 20s and have constantly had a difficult relationship with my mother who is in her 40s. I was raised by my grandmother as she had me very young and although our relationship has always been civil and from the outside close, whenever I was difficult in my teenage years my mother would fly off the handle and blame me for ruining her life, causing her stress, and she was always resentful. She has always financially supported me and attended major events and she isn’t inherently a bad person. When I was 15 me and her partner had a huge fight and since then haven’t spoken, she said she would leave him but never did, we used to be civil. Fast forward to a few weeks ago I was in her house when me and him got into a fight as he threw my suitcase into the hallway while I was loading washing machine as it was “cluttering the floor”, he told me not to feed my baby in the kitchen as it distracted his dog, and a few other minor things which escalated into him threatening to punch my husband and telling us to fuck off out of the house which we did with our newborn. I haven’t been back and at the time mother said it was unacceptable and she would ask him to leave (her house). I feel that once again she’s chosen him over me and I can’t be bothered with the drama, I’m older with my own husband and kids. I don’t think she’s a nasty person I just don’t have the energy to keep being the mature person. AIBU to just walk away?