Character loves Rahadin, need some advice

If the name Kickolas means anything to you, leave.

One of my player’s characters has absolutely fallen for Rahadin. Now, having received the dinner invitation she has paid a Vistani to send a private letter to him in the castle basically declaring her love for him, requesting a dance at the dinner, and signed it with her character’s true name (she uses an alias for backstory reasons unrelated to Barovia). I was already planning on there being a dance at the dinner, but I need help with how Rahadin might react.

I’ve been playing him as ever so slightly flirty, but mostly a pleasant smile that barely hides a desire to peel the flesh off of your body. Would he tell Strahd about this letter? Would he do anything with the knowledge of her real name? I’m not fully sure and wondering if anyone has run into any similar situations.