I want to preface this by saying DH is an amazing dad and he loves our children.
I've had more issues than I can count with MIL who has an enmeshed relationship with her son DH, and dislikes her own daughter (presumably because she sees her as competition for attention). MIL will embrace DH for TOO long when she sees him (trust me when I say it's awkward) and I think she looks to him for the affection that her and her SFIL don't have. It's super creepy.
After a series of awful behaviour DH agreed our son and daughter can be NC with MIL as well as me (I was prepared to leave my marriage over the fact) but worry than in future he will back track because MIL is manipulative and will want him to take our children over on occasions such as birthdays or Christmas. If this happens, I think we will end up getting divorced as there have been too many arguments and too much has happened where he would not stand up to her. For context one issue was that my son has a dairy allergy, she fed him dairy because she didn't take it seriously and he ended up in the emergency room. She's not safe.
AIBU to think that DH is going to let me down and not stick to his word? It's affecting how I feel about him. Even now I am in the spare room as I am losing my connection with him.