do anyone know the meaning of the song obsession?

I found this on Deviantart :

SHINee’s vocalist Jonghyun recently created a hot issue when he revealed that there is a hidden meaning behind his composed lyrics in the song Obsession.

On the 27th, Jonghyun left a hint for fans to decipher the hidden meaning behind Obsession through a phone call with Star Call. During the call this singer revealed, “There is a song in this album where I participated in composing. Called Obsession, I’m curious as to how fans are deciphering the lyrics for this song.”

Jonghyun then continued by giving two hints that is supposed to help in finding the hidden meaning. According to this idol, the first hint is, “The woman left towards a place that could never be seen again” while the second is, “The man has a dual personality and is suffering from a mental illness.”

The SHINee member also said, “The lyrics of Obsession were written after being inspired by a novel I read, and I think if everyone knew the true meaning behind these lyrics they would be greatly surprised,” emphasizing the fact that the lyrics of this song is not simply about love and break ups.

*I personally think the song is about how a man can love a women so much that it slowly kills her...or makes her leave without trunning back and how the guy feels like he lost a part of himself in loving her and is obbsseing on having her back and if that cant happen he'd rater die!
it could be that she is cheating and he got his reveange and became obbssed with revange untill it endangerd there love!and the side of himself he didnt know he had is killing him because she was the one to pull that side of him out!i think this also ties along in with what i said before- k in the song they say “your lips that left min shouldnt love” and “dont love me i threw u away” for some reassion im getting the vibe that he doesnt want her to love him like he loves her!!! i know thats odd but he must have relized he was forcing his love on her and she just took it and when he finally relized that he hated it and the girl just kept loving him and he couldnt under stand y but yet he couldnt let go of her and the love just sprong into violence(maybe)or the love just went out of control

But Boice97,you have to know that everyone's opinion is different so it could mean something totally different to you...

(And the lyrics translation might help too.)