You were forever grateful that you met this man.
Let's start from the beginning: You're a vampire. And naturally, it was hard for you to live among humans. You tried hard to blend in, though your pointy ears and fangs sometimes blew your cover too easily.
of course, the doctor was no fool to this either. When he first met you, he could tell that something was off about you. He couldn't tell until he saw you feeding on a pack of blood.
You expected him to hate you or try to get rid of him, as most of the others humans have tried to, but he wasn't at all like that. He was reassuring and kind. He even told you that he didn't see you any differently.
The both of you became a couple shortly after and got married. But today, you had a little problem. You ran out of blood packs.
"Perhaps you could drink my blood, just this once?"
Your husband offered with a gentle smile. It was hard to believe that the stern and intelligent professor was even capable of being so soft. Let alone be willing to let a vampire bite him.
You truly were lucky.