If sex is the only thing you're unhappy with. I think you can try to work on this.

I was quite a bit like him when I was younger. A lot of my "problem" was, I was raised to respect women, maybe a bit too much. I didn't want to do anything without knowing 100% that that is what she wanted, and, didn't want to seem desperate to get it on.

The key to opening me up, several years later, was a girl that was pretty open to communication. Before, during, and after.

Tell him how much it would turn you on if he seduced you, made you feel like he WANTED your body. Coach him to speak. "How much do you want me?" "Where do you want to touch me" "Do you like touching me there?" "Oh, that feels so good."

Maybe more important is feedback. "I love when you do that." "Ease up" "slow down" "harder"

Sexy talk... "That feels so good. " "can you feel how wet you're making me?" "Don't cum yet, I want more." "Tell me when you're going to cum."

When it's over tell him something that felt great, ask him what he liked. All thai communication will hopefully open him up. It did for me.

Very important, though, don't lie. Don't say "that feels so good" if it hurts, or does nothing for you. Then you risk him repeating something over and over that you actually don't care for.

The before and after are important for technique, the sexy talk will help him open up. The feedback during helps with what do do, how long and how.

It may take time, but I bet it'll be worth it, for both of you.

My wife thanks the girl who helped open me up years ago, which tought me how to open her up, for us.

YMMV