'The C word: for D.'

I have mixed feelings about her.
She once said about me that
'Everything I did was for a reason.'
And that was maybe the highest
Compliment anyone ever
Bestowed on me.


But she knew how to manipulate me.
Oh yes she did!
And when she used me to be more than friends
With my friend, and then later said
I was selfish. And said I could not
be with my friends if I would not
Give them gas money, I was hurt and alone.

Then, years later, we became friends again..
And she used me to hook up with my then roommate:
An unusual (yeah that's a good thing)
Fellow. But she was still with the other guy
I hooked her up with previously.
What did I call her again?