fucking frustrated

you know what is literally the worst feeling in the world? when you're giving your husband a blow job and you can literally feel his dick go soft. I have never felt worst in my life. I have asked him to be more verbal in telling me what he likes but he won't. he gets mad and says he doesn't know how or that it makes him feel weird. he does not make a peep while we have sex. this is just heartbreaking at this point. like Is he not attracted to me anymore?