Experience.

I'm sorry.

I'm not a good friend for you i guess.
I really have nobody to text with anymore, ever since you're gone.

I doubt you'll come back and be my friend anymore, but i'll wait.
No matter what, Koala is waiting for Mouse to come back and trust him again as friend.

I don't know what i did to make you lost your trust on me. Will you tell me?

Sigh, forever alone...