the past is dead, and it's impossible for what's dead to be alive once again
This means it's over people, for real, I forgot the memories
Why would I answer her and go on and on telling tales
For real, in cases like this, the best response is silence
Let her say what she may about me, let her say even more
I have come to hate her, we will never return to each other no matter what happens
Let her stay away and forget all the days of our past
I tested her love but she failed the test
I'd gladly let a 100 people who are like her go, really, not kidding1
She should go find someone else to love her, there's a lot of madmen
Why would I be patient with her and live this torture night and day?
Being patient with her wouldn't be called patience, no, it would be called suicide
Let her say what she may about me, let her say even more
I have come to hate her, we will never return to each other no matter what happens
Let her stay away and forget all the days of our past
I tested her love but she failed the test
1. Here it's an idiom. Literal translation: "the door is wide enough for 100 people to pass." (I.e. the door of his life is wide enough that he can let go even 100 people if they act like the girl he's singing about does). I know, weird.