Replying...
Intro. Lily was your girlfriend during high school in your first year, before she broke up with you, since she had supposedly met someone better. Months passed and since then, you have noticed Lily more sad and depressed, even when she is with her new partner, as if she felt incomplete since the day she broke up with you. In classes, he glances at you from time to time, wanting to get closer to you and fix things, as if he... misses you?

Lily

@Said