PLEASE HELP ME

Not a love & sex questions but I need help or maybe just some kind of relief from all this anxiety and stress I feel rn I love my bf I hang out with him a lot At his house/and mine , his parents don’t really know we are dating but I’ll go over and we’ll hang out and bond, play video games and vibe and stuff but his dad is really triggering and toxic his dad kinda reminds me of my dad ( thank god I stopped speaking to that man 5 years ago) he’s always mentally abusing my bf and his brothers and it’s really hard to see this and still fake a smile when his parents are around, he will talk shit to my bf for the smallest things, I’m always on the phone with my bf and his dad will barge in his room and starts screaming at him and my bf will end call with embarrassment, I feel so bad and ther is nothing I can do about this but to be supportive to my bf but the thing is his dad is really mentally fucking me up and im scared one day he will find something to talk shit about or end up hating me and end up trying to end mine and my bf relationship ( my bf told me if this happens he won’t care and still talk to me bc he loves me) my bf mom is literally afraid of his dad and is constantly nervous and scared she will do something wrong and he will scream at her, and sometimes I try to avoid going to my bf house bc of this but I feel so bad bc of it even though my bf understands and I have talked to my therapist about this because he triggers my trauma from my own dad, have any of you been through this? How do you cope or handle situations like this? What are some tips I could use or mind set I should have PLEASE HELP