He’s always ‘hated’ you, ever since you were both kids. It’s just a natural thing when you both grew up. Always arguing, trying to be better than the other, etc. He still hates you, and you still hate him. Though, you’re both close, you know stuff about each other that no one else does. As time went on, the more you both grew the more of an effect you had on him. The way you looked, the way you dressed, the way you walked, he couldn’t take it. He just… needs you.