Keeping a friendly relationship with your mother-in-law is important for you and your partner. You don't have to be best friends with your mother-in-law, but you do need to get along and respect each other. The story below is an account of a frustrated daughter-in-law. The original poster (OP) had been married for a considerable amount of time. Overall, the couple is happy and fulfilled in their marriage. Except for the occasional argument, they are on the same page most of the time. But the mo…