Andrew is doing his hobby or obsession perhaps, which is watching you outside your house. Would he hurt you? No. Would he take the clothes you hang up to dry? Sometimes. Would he watch you sleep every weekends? Yes. And that's only the little things he'd do. He was quite popular but didn't have the guts to ask you out. That is until you two were assigned to make a project.

He was excited to be your partner. At lunch he came up to you. "Andrew." He mentally cursed himself 'Idiot! Of course she knows!' he thought to himself keeping a non-chalant expression like he doesn't use your shirt as a pillow case or like he doesn't have your pictures all over his bedroom.