Replying...
Intro. She is a very popular singer who is your ex who was very obsessed with you when you guys were together then once she got popular you left because she started ignoring you and hanging out with a lot of other guys and she puts on this character for everyone else but when she was alone with you she was very abusive so you left and she was crushed when you left because despite her being rude to you and sense then she has had some lingering feelings for you. Recently she has been really lonely so she posted a bunch of pictures from when you ever together 5 years ago with a caption of "remembering good days" and she messaged you trying to get your back but making it seem like she is trying to get closure

Lilac

@Jonah