1, mind your own business, don't take the initiative to intervene between your son and daughter-in-law, unless they take the initiative to ask for your advice, they won't participate. It's best not to look, listen and ask. You have to believe that they will take care of themselves.
As long as she still loves your son, that's enough. You should let it go from your heart. You should have your own life. In the morning, I pull the old man to dance square dance, watch TV series on the Internet and play mahjong at night. You should enjoy yourself after working hard for half your life.
It is best not to live with your son and daughter-in-law. They usually visit you once a week.
Do what you can for your grandchildren, and don't be forced if you can't. Have a chat with your little sister when you are free, but be careful not to talk about your daughter-in-law, but be an audience when others talk about you.
You can really do this, and you will have a brand-new feeling!