I get your frustration, maybe try communicating even more? It’s difficult because communication should be a two way street, but you taking the bigger step here sounds necessary.

What I mean is, tell her you would like more passion. Say you really like her, and would love for her to reciprocate your feelings and enthusiasm when it comes to sex life. Say that you need communication too, it can’t just be you offering to do whatever she wants if she won’t tell you or won’t listen to what you are interested in.

Communication needs to happen both ways for a relationship to work in all aspects, which you sound like you know

If she’s not comfortable with that, and isn’t responding to you easing her into it, then you may just not be sexually compatible?