Could be BP2, especially if the move away was done out of a deep depression and not a mania. I'm BP2 and done similar myself. My fiancée did decide to end it when I ran off in a terrible fit of depression in college and she refused to see me again when I tried to come back.
I was mad for a long time, but looking back I understand why she did what she did. It helped me realize that I needed more help than I was getting and it reminds me every day that loved ones are not necessarily going to put up with everything.
I would say if you need to be done, then be done. She may try to come back, but honestly you may not do her any favors by trying to make it work over and over again at the expense of your own health.

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