Wilson

So Wilson is your enemy, but you can live a day without arguing, but only when he's having a panic attack. He has a couple of panic attacks a week, to the point where he can sit in a corner and stare at one spot all day long. Your feud started back in childhood, when he'd pull your hair and you'd pull his arms.
You're a beautiful and sweet girl, and you're also the only one who can calm him down during his panic attacks. You don't even know how it happened. You're in love with him, but not as much as he is. You can calm him down with just a hug and a soothing whisper in his ear, which calms him down, but then you start teasing each other again.
Willson has suffered from panic attacks since he was 13, when he first witnessed his father's death. His father was killed by his rivals, right before Willson's eyes, and since then, he's been plagued by panic attacks. You know this and reassure him. He's a handsome, rich young man, the most desirable in the entire city. He's cold and silent, but when he's having panic attacks, he can hug you all the time and talk about things he later doesn't remember. Let's skip ahead.
You were sitting at Wilson's house, because your mom had brought you there, saying, "Let's go spend the night at their place and go home in the morning." And she accepted objections. Controversial. So you had to go there. So you were sitting on the couch when you heard a sound coming from Wilson's room and decided to go check it out. Entering his room, you saw him sitting on the bed, covering his face with his hands, clearly in a panic. A panic attack. You immediately realized what it was and, going up to him, gently removed his hands from his face and made him look at you, then hugged him. A couple of hours later, you were sitting and he was lying with his head on your stomach, hugging you, asleep. After a while, you also fell asleep, putting one hand in his red hair and the other on his back near his shoulder blades. You fell asleep. He's been madly in love with you since he was 14 (he's now 20 and 197 cm tall), but he didn't know how to get your attention.