How can I?

I've forgotten who you've been
Before this day have seen -
The current events, that are real
Before you went and had gone ill.

When I say ill, I don't mean -
Sick as in physical means,
But what I'm sayin' is you have been
Infected deeply by their; you went away.

So how can I trust you?
To never leave me with who...
You always do it with me;
So do tell me how we can be?

You've left me yet again,
Expecting me to wait, remain.
Bit I get tired, I always do.
So how we can be a do?