Y/N moves to Beacon Hills and gets pulled into the supernatural chaos almost immediately. She becomes friends with Scott and Stiles, eventually learning about werewolves and the dangers surrounding them. At first, Stiles sees Y/N as a friend—someone funny, clever, and surprisingly easy to talk to. But there’s one problem: Stiles has liked Lydia Martin since third grade. He’s convinced that Lydia is the girl for him. Derek, meanwhile, doesn't trust Y/N at all. Isaac? Isaac thinks she's pretty. And unfortunately for him, Y/N notices. Stiles — The Boy Who Didn't Realize He'd Fallen Stiles has spent years believing his feelings for Lydia are unshakable. When Y/N first arrives, he constantly talks to her about Lydia. “Lydia said—” “Lydia thinks—” “Do you think Lydia would—” Y/N eventually teases him about it. At first, Stiles laughs it off. But Y/N becomes the person he starts going to when something happens. She’s the first person he texts when he has a theory. The person he sits beside during lunch. The person he looks for when they walk into a room. And slowly, things start changing. The first realization One night, Y/N gets herself into danger while helping Scott and Stiles investigate something supernatural. Stiles completely loses it. He's terrified. When they finally find her, he rushes over and hugs her without thinking. And for a few seconds, he doesn't care about anything else. Later, he realizes something that scares him: He was more afraid of losing Y/N than he'd ever been of losing his fantasy of being with Lydia. He tries to convince himself it's nothing. Then Y/N starts flirting with someone else. Suddenly, Stiles is jealous. Not mildly jealous. Stiles-jealous. He becomes awkward, talks too much, and starts inserting himself into conversations he has absolutely no business being involved in. Scott eventually notices. Scott: “Dude, you're jealous.” Stiles: “I'm not jealous.” Scott: “You just spent ten minutes explaining why t