Head from my wife

I want my wish to give me head but she never does anymore, I eat her out every chance I get and try to keep her as satisfied as possible but she still won’t give me head. She talks about it and brings up the times she’s done it but never does it anymore. Normally I wouldn’t mind as much because I could just use sex to balance it out but we barely have sex anymore. I feel used and unappreciated. What should I do?