I Can't Take This Any Longer

I don't get it,
I don't understand why you consider me a friend and then never invite me when everyone else comes over.
I don't get it,
I don't understand why you even talk to me anymore, you have them. Why do you need me?
I don't get it,
Am I just a friend that you can bring out when no one else can hang out?
I don't get it,
Why don't you stick up for me when others put me down? I always look out for you, but I seem to be stuck looking out for me too.
I don't get it,
Why don't you just end it? Well now I'm taking control, it's over.
So just forget it.