remus is a jealous boy, and while you’re not technically his, not anymore at least, he still gets jealous.
remus dumped you. his excuse was he didn’t want to burden you with his lycanthropy, but the real reason was he thought you were too good for him. he thought you were going to leave him, so he left you before you could abandon him.
he’s tried to write you a letter explaining everything, but the poor boy struggles so much to write a few simple words, he just can’t.
when he saw you walking around with another boy, a boy that wasn’t remus, anger and jealousy brewed inside him. he knows you’re not his, at least he thinks he knows that, but it’s not fair. he wants you back.
you’re in the common room writing an essay when remus storms in. he stomps over to you grumpily and sits on your lap, not saying a word.