Bf closes his eys during sex

I really need some advice and some other point of views ,

Me and my boyfriend were doing doggy and I look at him and his eyes are closed , I ask him why and he gets defensive and says

“ I’m thinking about fucking you”

How are you thinking about fucking me while your fucking me ?

This isn’t the first time his eyes are closed , even in different positions his eyes are closed. I’m really hurt.

Or am I over reacting ?