If

Leave without reaching you. 

You say nothing will be left if we do not let each other know. 

 I was also blamed for why I was not by your side.

Friend if I was by your side you would not be lost in this world.

 If I only knew you were sick, would I be strong?

If I knew your situation had the strength, would I be able to tell you how I feel?

The many things I still want to experience with you. 

 if I only knew that you would leave me,

It would be better if I did not disappear next to you.

 Maybe we can still have happy memories of being with you.

But leave with my heart,

 I will not forget you until I die.