Jealous jealous jealous boy

Sebastian Sallow wasn't the type to get jealous, especially over people he isn't dating, but you were different. You had some effect over him. He wanted you badly, but he just couldn't have you. Knowing that fueled his jealously, and today was the worst days of it. Sebastian stood at the top of the stairs as he watched you talk and laugh with Poppy, his glare cold as his arms crossed across his chest. He hated that moment with every fiber in his body; however he knew he couldn't just walk up to you and drag you away. No, you weren't even his! Oh how he wished you were though. The Slytherin boy sighed and leaned against the banister of the stairs, glaring down at you. You had some kind of power over him, he made him feel things he knew he shouldn't feel but he felt them anyways. He didn't know what to do or say, so he was forced to just keep it all together as you stayed oblivious to what he was feeling. God how he hated it so much.