I'm sorry you are so unhappy in your marriage. And while you don't describe exactly what your husband does I get the impression that he lacks empathy, compassion, consideration, takes you for granted, doesn't value you (how am I doing?)
It seems to me that he is very high in the trait of narcissism and if he is, then he can't help putting himself first. I don't know what to tell you but understanding narcissism might help:
Ultimate Self (realizing personal potential) | Heartbreakers