Disclaimer: None of these wonderful characters belong to me, unfortunately. They belong to J.K. Rowling without whom these characters never would have existed.
Eight Years
First Year
She tolerated him.
She thought he was immature, but so were most eleven-year-old boys. It was in their nature, they were building their reputation. So even though some of things, no, most of things he did annoyed her, she didn't hate him.
Second Year
She didn't like him.
She thought he needed to grow up, even if it was only a little bit. Turning her hair green and hexing random people. It wasn't funny to her. It never was.
Third Year
She disliked him intensely.
She hated watching defenceless students be another victim of his latest prank or be at the receiving end of one his hexes. It was cruel and vicious. It hurt people. And she was usually one of those people.
Fourth Year
She hated him.
She claimed he was her personal hell on earth. She couldn't believe he had the nerve to ask her out after all of the times she had screamed at him. That didn't stop him. He came back again and again. She always said no.
Fifth Year
She despised him.
She had lost her best friend and it was thanks to him. He had ruined her life. He might have been sorry but she couldn't forgive that easily. Especially if she was going to forgive him. It wasn't going to happen any time soon.
Sixth Year
She detested him.
She couldn't forget five years of pain. And she couldn't forget who had caused it. She tried to. But he was always there. Always taking up the corners of her mind.
Seventh Year
She fell for him.
She fell for him hard. It hurt. It hurt bad. She understood his pain now. She felt it herself. She had to change that. And she did
After Hogwarts
She became Lily Potter.