"....I try not to think
About the pain I feel inside
Did you know you used to be my hero?
All the days you spent with me
Now seem so far away
And it feels like you don't care anymore

And now I try hard to make it
I just wanna make you proud
I'm never gonna be good enough for you
I can't stand another fight
And nothing's alright

'Cause we lost it all
Nothing lasts forever
I'm sorry
I can't be perfect
Now it's just too late and
We can't go back
I'm sorry
I can't be perfect.."

Perfect - Simple Plan. Dunno why but I love this song. Especially those parts hehehehe.