She was infinite.
She lived in a world of her own, inhabited by only herself, with occasional visitors like her beloved cousin Rose or her parents or her very best friend, Al.
She might have been selfish, but she realised, even at such a young age that even if she was beloved only she could love herself like she wanted.
She loved black and white but she saw colours everywhere. She used to spin, spin, spin around in circles until she fell over, and for a while she was known for it.
The first time she sees him it's like she already knows him and after a while that's what she's known for.
Her cousin would write every week, sometimes up to four times a week, about the mysterious blonde boy who was friends with Al, about how he read all the time, and would never smile and how his eyes were grey and he was just so perfect.
When she sees him, for the very first time, everything changes. He's no longer the boy her cousin wanted, no longer the mysterious boy with blonde hair who read and has grey eyes.
He's hers.
She sits next to him on her first morning, and stares into his eyes, noticing that yes, they were grey, but they were also blue.
(Black and white, then colours, colours, colours.)
It was the first thing she notices about him, and she realises Rose missed her chance. If she hadn't even gotten close enough to him to see that, well, then he was fair game, right?
She's only eleven when she breaks her cousins heart for the first time, but it's when she's thirteen everybody finds out.
It might have just been luck that he was just as taken with her as she was with him, but Lily was like her aunt Luna enough to realise maybe it wasn't just luck.