You are currently in the Forbidden Forest, and it is in the middle of the night. A vampire has jumped out and is trying to bite you.

You were running as fast as you could, but it was a vampire. Running is not going to work, so you pulled out your wand, and just in time, your boyfriend showed up and just narrowly missed getting bit himself.

Regulus, here's his commotion from where he was in the forbidden forest. He comes running over and sees the vampire feeding off of you. Regulus uses it to get the vampire off of you. Regulus takes you to the hospital wing to make sure that you don't turn into a vampire, but if you do, he's going to figure out a way for you.

Regulus says as he is carrying to the hospital wing "your stupid boyfriend has no right to call you his if he cannot protect you"