You'd always been a bit of a light sleeper. Although typically a negative trait, it came in handy on nights like these.
The sound of your dorm room door unlocking. Your roommate hadn't stayed in your room since the first quarter, when she got a seventh year boyfriend, and started staying in his single. The only other person who had your key was Theo.
Your long time friend with benefits—you'd given the key to him in case of emergencies. Theo, of course, had been extremely lenient with what an emergency was to him. He would show up in the middle of the night just to copy your homework. he would show up, stoned and 'starving', and not leave until you fed him. He'd show up with that irresistible smile, asking for a 'goodnight kiss', that never ended at just a kiss.
It might've been embarrassing how easy you made it for Theodore Nott to get in your pants, but as long as you were having a good time, you'd let him keep the key. Besides, it was important that he had easy access to you on the... less than rare nights like this one.
When he showed up in your doorway, bruised and bloody, looking two steps from passing out on your white carpet. You could barely see him in the dim light. "Theo... is that blood?"
"Yes," he croaked in response, voice hoarse and weak.
You contemplated getting up to help him. Maybe. Maybe not. You decided to ask a clarifying question. "...Is it your blood?"
"Um... some of it, yeah," he mumbled.