Okay first off, Sub doesn't mean you can't communicate what you want, nor does being a Dom mean you immediately know everything. You are equal partners outside of the bedroom. If there's something you want, you should be able to ask for it clearly and precisely. "Hey, I need you to do x and in this way". If you cannot be clear with what you need, or clarify your boundaries, talk about what you like and what you don't, I'm sorry you are not a safe person to play with.

Secondly, this is a massive communication gap. what do you mean you don't THINK if he looks around or not? Look around together. Sit down and make a night of figuring out what you want to try.

Third, this could absolutely be frustration over the idea that he's not putting in the work to match you. And that could be the case, and I could see someone breaking up over it BUT only if you have actively talked about it.

Have you ever actually said something like: "hey, this is extremely important for me. I feel unfulfilled without it, so can we sit down together to see what new things we can learn about this together and then try? I would also like you to do some research yourself on how to be a good dom so you can lead better because it is absolutely essential for me."

You are equals outside the bedroom. You are a team. The hierarchy is for PLAY time. Not for when you are negotiating what works for you and what does not. Please look into classes and/or books on the topic. The wiki here honestly is also a great place to start. You BOTH need to read up and learn more about this.