GOOD/BAD FRIENDS... ?!

Can they be "Good Friends", yet not good for each other ?
Does that mean they are "Bad Friends"?
No, they are not bad friends.
While not being able to be "Good Friends",
does that deduce them to
being "Bad Friends"?
Hmmm...
They are not Bad.
They are very Good.
Yet they cannot be friends.
They cannot be "Good Friends".
Too bad. (No pun intended.)
For they were "Good Friends".
But it was Bad.
So now that they are not "Good Friends"
Is that Good?
Depends.

Okay, I got it!!
They were "Good Friends ",
in a "Bad Friendship".