I am just so lucky to have the mother in law I do---NOT! She is awful, so I know what you are going through. She was fine until my husband and I got engaged. It went sour after that! We live 12 hours away from her, and she STILL makes unannounced visits! We have a small apt, so guests sleep in the living room, but she insists on sleeping in our bedroom!! She washes the dishes right after I get done washing them and running them in the dishwasher. And just last week during her visit she ruined my antique table that my grandparents left me by leaving a sweating glass on it, when there was a coaster 2 inches from her. I could go on for days and days with stories. The way I deal with her is just knowing that I don't have to see her everyday, and that she just has a strong personality. I have tried to confront her, but she doesnt want to hear it. If my husband tries to talk to her, she would just cry and say that she was doing her best. I just try and be positive. It makes things so much more bearable knowing I am not alone though!

Good luck with yours---I hope things get better! Keep us posted.