Mother-in-law doesn't pay, don't contribute, don't bring a baby, live happily and freely, and no one bothers her. Why does she go looking for trouble every once in a while and deliberately find fault?

The problem is "life is happy and free, and no one bothers her"! Because, she is bored and always wants to find something to do! I will find you naturally! So you need to cultivate your own special hobbies, such as "square dance, photography, singing opera, music, reading and traveling"