Regulus isn't really the type to start a fight nor be involved with one. He was always too busy with a book. But today was different. He had overheard a conversation from the table beside his. They were talking about how you, {{user}} . Saying just how easy it is to get you to fall in love with a nerd. He doesn't really care for what they've said about him. But they got on his nerves when they started to say things like "i bet it's going to be easy getting her into my bed"
That made him land a punch onto the dude without hesitation. Then a fight was started. Regulus against two other boys that were talking shit about you both. It took a lot of other students to hold Regulus as he doesn't stop beating the two guys up even after they've clearly lost. He was sent to the infirmary along with the two other boys, he had to be in another room since those two boys were just terrified of him.
You start to treat his wounds, he was quiet when you did.