"I notice when he focuses on her, most of what he thinks about is what she can do for him, not the other way around. But he's not so much needy as entitled, so no matter how much you give him, it will never be enough. He believes his needs are your responsibility, until you feel drained down to nothing."
Then he'll turn around and say that you are the one who cannot be pleased. "The abuser's highly entitled perceptual system causes him to mentally reverse aggression and self-defense. The lens of entitlement the abuser holds over his eye stands everything on its head, like the reflection in a spoon." - Lundy Bancroft, 'Why Does He Do That'.