Just say no

My poor husband. I told him sex just wasn't comfy or even fun anymore. I had been doing it just for him for about the last month but I'm done. I told him he is going to have to use more than his penis and really work hard at this because it's not working
For me anymore. That was a week ago and he keeps thinking I was just kidding and I'm going
To give in. I keep telling him it's my turn! And until then- I'm just saying no.