Sex File: He doesn't like me being vocal in bed

When a person is lost in a sensual experience, listening to a partner giving them step-by-step instructions can break the spell.
There is nothing wrong with being vocal during sex, and many women would probably have more satisfying sex lives if they took a leaf out of your book, but the fact that it is putting your partner off his stride is a problem. Your approach to this issue has been to try to get your partner to do what you do, but that is not going to work for a very obvious reason: a man who doesn't appreciate having a vocal partner is hardly going to feel comfortable giving instructions himself.