Mother in law crisis !

Carol
Me and my bf bought our unborn son a play pin , high chair , swing & etc . My bf who lives with his mother told her ahead of time he will put the stuff in their spare room / storage room until we get our apartment . Apparently she didn't like that idea made every excuse in the book not to let us leave the stuff back there . First off why is she acting like this it's her son's first child ? She doesn't like me does she ? She wanted us to have a girl and not a boy .. She is rasits in my opinion , im Puerto Rican and my bf is white . What should I do