Mother in laws 😠

Brenna
Ok so I know they just want what's best for there sons but she confuses me idk whether to dislike her and be her friend. When my husband and her get into a fight all she goes off about is how stupid fat and worthless I am. But when I get into a fight with my fiance she tells me not to leave him I am the best thing that has happened to them. Also she always wants me to go everywhere with her but whenever she gets the chance she will talk shit behind my back. Idk what to think!?!