What kind of friends that assume too much? May I ask?

They come when you have everything
They go when you have nothing
Since they don't know
All day they just assume
But never even ask
Nor even call?!!

I'm in a very deep disillusionment now..
Yet so, what kind of friends do I've?
I give all I can to support you guys
My everything
And at the end of the day
What do I get?

Nothing!! But just but the wind that come out of their mouth!