You have lost her, the only remote chance of getting her back is to let her go and move on, hard i know.
whats the saying--somtimes in order to get somone back youve got to let them go.
Ive had girls i cut loose who messed my head up get back in touch over a year later and ive got it back on with them on my terms.

The fundamental mistake in my eyes you made was letting this develop over sustained correspondance at a distance,