So, MIL has mental and physical health problems, not serious enough for her to be committed, but definately there and change her behaviour. The last few times we have seen her, she has taken an active dislike to DS6, to the point where we are unable to leave her and him in the room on their own. When I have done in the past I've heard her say "you're a horrible little boy" etc. This weekend we went up there as she's been in hospital, to check how she was etc. I spent most of the weekend shopping, cooking, cleaning etc for her. She doesn't go out of the house, there is nothing for the kids to do there, and her house is unbelievably tiny - no space for kids to play, no garden etc. We took up toys with us, and I have to say both children (DD9 and DS6) were fantastically behaved, under the circumstances. However, DS6 likes to touch stuff - he didn't break anything but she exploded at him and told him to stop touching. He then reacts badly to her and is naughtier than usual, but he gets no positive feedback at all from her. She never speaks to him except to tell him off. This happened twice, at which point DS6 burst into tears and went upstairs. I told him I was on his side, but it was our secret (not wanting to rock the boat). However, when we went down again, she told him off for touching something that wasn't going to break. I lost it at this point and said that that is fine if those are her rules, but she has to be fair and ensure the rules extend to both children, not just DS6. She said that was the case. I pointed out DD9 was playing with said object only 15 mins beforehand, and also that she was allowed on MIL iPad - something DS6 is expressly forbidden. She then told me how badly behaved DS6 is and how she would never have let her children behave in such a way so it was obviously bad parenting (from me obv, not her precious son). I walked out at this point, to avoid screaming at her, and we then left.
DH never mentioned it on the way home, which annoyed me, but figured he didn't want to discuss in front of children, which is fine. But once they'd gone to bed, he still didn't mention it. I then brought it up, and he thinks she is sorry. However, I feel very strongly that it is bullying, and do not want DS6 put in that position when he is with his family. DD9 is also aware of the situation, and I don't want her thinking it is ok. DH agreed that we should keep MIL and DS separated, and me and him don't have to visit next time.
However, we are not now due to see her for several weeks/months, and I know he's thinking I won't carry on with this, and will "give in" and take DS. AIBU to refuse to do this? Thanks for reading this post (didn't mean for it to be quite so long!)x