Long story short... my parents are having a huge marriage crisis at moment as a result of one of them finding out about an affair that happened 30 years ago. As part of our discussions about this, my brother told me he remembers my dad physically assaulting my mum banging her head against the wall. This was around the time he suspected the affair was taking place. I was too young to remember this but I do know he is a very angry volatile man. He was hell to be around at times growing up. I witnessed plenty of emotional and verbal abuse towards my mum but not anything physical. I'm just trying to make sense of it all now and wondering if there was more physical violence behind closed doors? Obviously nobody knows the answer to this but is it possible that the physical assault my brother witnessed was a one off? Or is it more likely there was more physical stuff we weren't aware of?