There's a ratty cage making ratty noises looking for your ratties!
This week I decided to sell my house (my proceeds from the divorce), sell the luxury car ex gave me for my birthday (if you know anyone who's interested in a Lexus IS 350 with the sport package at a reasonable price, let me know!) and let go of the the stuff that keeps me intangibly connected to him.
You've seen my house.. way too big for two people. I can survive here, but I can't save money... I'm a prisoner to the mortgage and can't afford much else.
It's about letting go. Your in-laws are not invalids, they're adults. They look for your direction. They feel a responsibility for your welfare after the your struggle with the divorce. You are not responsible for their wellbeing.
I have to tell you, getting the house ready to sell is a liberating experience. It's an action I'm taking for me, to make my life better, for me and the kids.
Set yourself free. Set your in-laws free. I repeat, you are not responsible for their wellbeing. It was a good situation when you were married, now it's awkward for both.
Shed the mantle of having to take care of the world.. and take care of yourself.