My husband

My husband reads my facebook messages between my brother and I gets mad with me for not standing up for his parents when I was talking to my brother about my husband and I buying a house and my brother said “just make sure it’s a house you want ... not what the parent in laws want” and my husband got mad at me for not standing up. My husband went on to say “your family does nothing but cause problems and none of them add anything positive to my life.” He’s always putting my family down and it’s making me upset I’ve told him that he’s making me upset when he puts my family down but he doesn’t listen, he went on tonight and said he wants a divorce over my family thinking poorly of his and because I don’t stand up for them. I don’t know what to do.