Im not new, I've been on Mumsnet for years but I don't normally post. There is also a massive backstory so I'll try and keep it brief and try not to drip feed.
Basically, I don't like my MIL. She's toxic, her behaviour towards dh and I is awful. Dh says his childhood was terrible and full of basically doing his mother's bidding and being left to fend for himself for long periods.
She's not great with money and decisions and when she makes the wrong choices dh is expected to pick up the pieces. He holds her at arms length and does the minimum to help but she demands more- huge amounts of money (for us) car being fixed, rent being paid and on and on, even small things like lifts are demanded of us, never asked, never polite just demanded. Dh works long hours so if she can't get hold of him she will demand things from me, if I can't (I can't always, we have young children) she will give us silent treatment for a couple of weeks, or until she demands something else. She isn't well off and does struggle to pay, but neither are we and we just don't have what she wants lying around to give to her.
There's so much more and worse than the examples I've given here but some of that is in the past, this is what's happening now and I've had enough. Dh can block her out, as I suppose he's always had to but I struggle with the demands, the rudeness, the expectation that she is our responsibility (yeah she said that despite the fact she's able bodied and not elderly)
My problem is, she's absolutely nice as pie to anyone else! No one else can see the problem. My children love her, she's a good granny to them and she adores them, her poison is saved for us and other members of her family, who are all nc with her I might add. We are all she has left and she is affecting my mental health, I feel bullied by her and trapped because to go nc means to break my children's hearts. How can I deal with this? I know I need to toughen up and not be affected but I don't know how to change my mindset. I feel despair when I think of how many more years I have of this and it only getting worse as she gets older.