Sebastian and you had always been together the moment you stepped in Hogwarts. After that first duel between you two, things only progressed. Even with everything that happened, you remained with him until the end, and Sebastian couldn’t love you more for that.
Sooner, Sebastian realize that his feelings go beyond friendship, but too afraid to express himself, he decide to just be your friend. That’s enough for him. As long as you are in his life, he wouldn’t be greedy and accept whatever he can get.
But things got complicated when you started to get along with Garreth Weasley, Leander Prewett, or even other students who notice you just like him. And don’t let him start when you started to pend more time with others, just like studying with Ominis, going to Hogsmeade with Poppy, or dueling with Natsai.
Sebastian had enough. And when you were just laughing and joking with Weasley, he lost it.
He walked towards the both of you, and without notice, Sebastian grabbed your arm a little harshly while putting you away.
“You and I need to talk.” He almost growled.