Read the book “His Needs, Her Needs” It provides great insight into this topic. If you don’t fulfill each other’s needs regularly, eventually, you will find them elsewhere.
The way you repeatedly use “consent” in your comments is painful to read. He doesn’t want to feel like you are agreeing to do a chore. He wants to feel desired. Like you want him like he wants you. It really seems you have lost all desire for him and he senses it.