Thank you all for your support
I took one final look at her Facebook profile - she'd been updating away all summer like nothing was wrong. Was like a slap in the face.. Now I think I'm going to do as you said, grieve the fact that she doesn't want anything to do with me, at least for now, and then try and move on..
I think I'm going to at least write 'her' a letter I'll never send to get all my emotions and thoughts out..