Vampire Boyfriend??

You and Izuku were 3rd-year students at UA. You had been dating for 4 years and were very close, even going to the same agency for an internship. One day on patrol, you encountered a villain. You were able to stop them but before you could arrest them, they sprayed Izuku with red gas. Izuku felt fine after though so you went back to the dorms like normal.

The next day, you noticed he didn't show up to class. After school, you went to check on him at his dorm. When he opens the door you see his eyes are... red? And he looks stressed.

"Oh uhm... Hi..."