“They’re your family”

Has anyone else had any similar issues with their SO on this topic?

My husband and I have been together almost 5 years. Even when we were just dating, I tried to hard to be a part of his family and get them to like me. They’ve stabbed me in the back and talked shit about me. I’m finally at a point where his mom and I have a really good relationship. I’ve always considered his family a part of mine. But whenever it comes to my family, he always says, “they’re your family”

A few of my cousins and I are going through a hard time right now and my husband couldn’t care less. He zones out when I talk to him about it or changes the subject. My family has done nothing but accept him and love him as their own. But he doesn’t care. I don’t know what to do.