Monster in-law

My boyfriend and I have been together for 3 years. We've lived with his mother the whole relationship. We have talked about getting a place of our own but financially struggling right now. His mother is driving me nuts...my bf works and I stay home because I have a knee injury. I cook and clean the usual things a "wife" does but his mom wants me to go above and beyond. She wants me mop the floors everyday, dust, vacuum everyday. She eats small meals 6-7 times a day I have tried making more than enough so she could have that to eat through out the day but she requests a different meal. By the way she has a Caregiver who comes in and cares for her 2 hours a day. When I go the whole day of not doing any cooking or cleaning she starts calling around to her other children telling them she hasn't ate all day, or the house is just a mess. My bf has talked to her a couple times she stops for awhile but then starts again.