I am a newly married girl, just 3 months old , from a hindu family...I have a problem with my mother in law..?

my husband is getting screwed in between me and her because of very small problems at home..she interferes evrytime me and my husband fight and makes the scene big.. we both solve the matter but then later she continues it and makes it very big...this time it came till we leave the house..my in laws are only suggesting it, but husband doesnt want to leave home bec her mother is a patient with sugar,high bp and obese, there wont be anyone to take care of her if we go away...he is literally crying, we are ready to adjust, but she is continuosly bitching about me in front of all neighbours and relatives...please suggest some opinions so that i can stay in house and solve this issue...I will be very thankfull...