This is ringing less and less likely to me
3 years olds dont react like this to a slap. They dont know its wrong, itr doesnt play on their mind, and they are more likely to become MORE affectionate to an abuser, rather than less
3 year old also dont have this kind of memory
OP, I really think you have projected this onto your son. Maybe something is wrong, maybe your are mistaken, but whatever is the source of this, I really think you are barking up the wrong tree. Be careful around this man, but you have nothing to accuse him of,
Dont leave him there without you, why would you anyway?
Dont question him to the point where he is going to feel like he has to give some answer, any answer
Find out where he is hearing this aggressive and threatening language
I dont think you are going to listen to me, because I think you are enjoying your "bubblingrage" too much
I pointed out to you there are concerns ( around his language, not his memories of his grandmothers partner)
I cant do anything else, so Im out.