forget about it, all she called for was emotional support, i'm guessing you mainly talked about her, chances are she was going though some troubles.
there is no reason why you can't call her,
try this
call her
you - hey, got this song in my head "quote lines from a song" what is it?
her -' i don't know, -or something along those lines'
you- 'find out and call me back' click
if she doesn't call back in 10 mins call her '"quote artist" fat lot of good you were,' Click.
=]
basically call her up just for the hell of it, but don't try to make arrangements or talk about your life.
you need to relax she is an X, they have tendencies to fall back on past lovers when they fealing a bit down. what may of happened is that you demonstrated something that you did that made her break up with you.
Or she has things going on in her life, so sit back game elsewhere , 'a watched kettle never boils'
all the best, let me know how you do.