Mother In Law

My mother in law is driving me insane. My fiancee and I are living with her until we have completed building our house. After which we will be getting married. I know it is her house and everything, but she does little things that gets on my nerves. Like, she still gets up in the morning to wake him up for work while I`m already getting him up. Then, she will go in the kitchen and fix him breakfast. I thought that was MY privilege as his future wife!! I know that she doesn`t want to let go of her "baby boy", but ever since she has been treating him this way, we have been arguing constantly. I sometimes wonder if she does it on purpose so we will call it quits. HELP!!!!!!