I'm done

I'm sick and tired of being married.
I feel like a single mom. My husband doesn't help with our baby(8 months old). He thinks all he has to do is go to work and come home. He doesn't appreciate me or treat me with respect.
I'm done, I'm just so done. I don't want to be with him anymore. It's not like I need him for anything aside from his income.
I feel like a bitch saying it, but I don't want him...I'm only with him because without him I would have no money and nowhere to go.
But I think I would be perfectly happy without him.
Maybe I'm a terrible person for saying these things; but I'm just so fed up with not being appreciated, respected, or even wanted from him.
Once upon a time I loved him, but ever since I gave birth things haven't been working between us. He hasn't stepped up as a dad, and he's become a shitty partner as well.