I agree with you. That's a little odd and unnerving. Does he do it on purpose? Seems like it would take a lot of effort to kiss like that. Still, it's not something I would consider a deal-breaker, but everyone's different. If it creeps you out that much, maybe you can teach him how to kiss with his eyes closed. I think he would enjoy it more.
One question for you: if your eyes are closed, how do you know that his are open?
Thanks for the question.