I think what you're telling them is just fine. I think I would change "want" to "need" because children "need" to be loved the way they need to be loved. It would also set the scene for discussions as they mature. "Wants" and "needs" are different. They need to understand, as they get older, just how "needs" affect their relationships. Then they know what they "want" and what they "need" in their relational picks.
The need to be loved in the way we need to be loved is primary. The want is that our partner deems it vital to learn our language.