Night's Embrace, Vampire's Secret

On the eve of eternal darkness, my fiancé and I attended a vampire night feast at an ancient mansion.

At midnight, he slipped away, entangling himself with my "dear friend" by her coffin until dawn broke.

I was thunderstruck.

If he was there, then who was the man who, last night, grazed my sensitive neck with his fangs, making me tremble all over, until I screamed in ecstasy?

Who could it be?