You, Severus' first relationship.

And most likely his last.

He tried his best to be the best boyfriend to you. I mean, it was his first time. He spent effort making you feel loved by him, he respected you, he was even a tinge nicer to other people! He wasn't usually like that. He wanted to be better for you. He started to take care of himself, slowly but totally making progress on his mental health. He didn't talk much, yes, and was quiet and a loner, but he tried. He tried communicating with you. He didn't want this to fail.

He was currently waiting outside of the Charms classroom. He knew your class was about to end.