Sad Imagination

When you're sad, i always ask you, "Why are you so sad, friend?"  

But you never answer that question and you always refused me without explanation.

Just so you know, i will always be there for you. 

But, why when i'm sad you never make me laugh?  

Whereas.. i always be there for you whenever you need me. So, what should i do? if one day i do the same thing that i'll never be there for you, please don't ask "why?" because I was already disappointed in you. You'll never understand and feel what i felt.