You’re not the only one. I have clients like this. Might be a lot of things: you’re not truly in the moment, not enough foreplay, maybe you’re love language isn’t being fulfilled even way before sex or foreplay. There’s a disconnection somewhere. It’s normal
A question, when you were about to get off did you SAY that? Or say something like “don’t stop” or “keep doing what you’re doing”? Because most men need literal instructions to learn how to please and then after a while they can get better at reading you. But doggy is difficult to read as you are facing away anyway.
Personally I do what’s best for me. I’m not dealing with selfish lovers anymore, I love a man who loves to please & then I will reciprocate