Fire and water is the most intense and delicate combination: one's passion with the other's emotional depth. Handled with care, there's steam — serious chemistry. Otherwise one feels extinguished and the other boiled. It all comes down to handling strong emotions.
Two mutable signs: infinite adaptation, mutating conversation, plans that change without drama. The hard part isn't getting along — it's deciding. This bond does well when someone says 'this, here, now' once in a while.