Looking for Book with a specific character interaction

I’m looking for a very specific type of character interaction/trope that isn’t actually a trope yet.

So the premise is simple character, A AKA, the protagonist is a dragon or was turned into one and is stuck as a dragon “no Shapeshifter no nonsense.”

Enter character B the human. Who is friend acquaintance/love interest, etc. of character A.

Due to instincts character, A is driven to hunt character B. Think of it a lot like how a vampire gets blood cravings.

So basically, I’m looking for a book or a series whatever it is. Where this interaction occurs.

I have only seen it done once in all my searching. Besides the obvious examples of vampires.