I am sorry to hear what has happened, maybe she'll come back if you give her a little space? My last have-a-good- sob-and-a-pound-bar-of-chocolate moment found me singing what I think was a Paul Williams song, the verse which got to me in particular went:

Gone forever, and all the fools have told me
Try to find a life with someone new
Share a pillow where a dream once took the time to lie?
Having known you, I would never even try

Unashamedly sentimental but cathartic...hope you feel better soon.