WHO’S OBSSESSED

In case you haven’t heard, singer Mariah Carey has a new single called Obsessed. Because of the content, some are speculating that the song is about rapper Eminem, who mentions her name periodically-even though it’s been years since their alleged relationship/encounter or whatever they want to call it. Below are a few lines from her song:

Ooh boy why you so obsessed with me?
Boy I want to know- lyin’ that you’re sexin me
when everybody knows it’s clear that you’re upset with me
Ohh finally found a girl that you couldn’t impress
Last man on the earth- still couldn’t get this
You’re delusional, you’re delusional
Boy you’re losing your mind
It’s confusin yo, you’re confused you know
Why you wasting your time?
Got you all fired up with your Napoleon complex
See right through you like you’re bathin’ in windex

Is this song about Eminem? If so, why do Em and Mariah keep going back and forward?