Personally, I find this particular phrase to be incredibly rewarding when it comes from my Dom. It brings out this fantastic sensation that I have succeeded in pleasing Him and I positively glow.

That said, I'm having some difficulty imagining it getting to be that much of an issue, but if it really got to me, I believe I'd try to find an appropriate time to bring it up and explain why exactly it makes me uneasy. One could also ask if there would be other ways to bring across that positive reinforcement that would *actually* be positive for you and could serve as a comfortable substitution for your Dom. Knowing my Love, He would probably insist on saying it anyway from time to time just to piss me off.