Um, what the hell, ashley barks?
It's obviously from Edward's perspective, anyone who has read the book can see that much. It's more of a new moon song, like "forget the wrong that i've done help my leave behind some reasons to be messed, and don't resent me but when you're feeling empty keep me in your memory leave out all the rest, leave out all the rest" is very like, new moon. Like when he's gone he wants her to know that he still cares.
But it can also be a twilight song because "forget the wrong that i've done" can refer to his behaviour towards her on the first day she arrives at school.
If it was from Bella's perspective, I have no idea how to explain that. It's just retarded.