I'm thinking of allowing my MIL to open a can of beer that was special to me.
Oh wow, do you still care for your wife's family?
No, the relationship isn't going well but I still wanted to give my MIL this beer.
I am sorry that your relationship is not doing well but it is okay to remember the good things that happened with her family. It does feel good to have others do nice things for you.
Yes, I am afraid the relationship will be over soon.
Are you sure that you can't speak with her about all of these issues? Most people would attempt to work things out with their wife.