Just this last week, almost 5 months after the break up, my sister called to tell me that my ex reached out to her, and asked her about how I feel about us getting back together again, and that she terribly regretted letting me go. I was surprised to say the least. However it was too late. It has been almost 2 or 3 months since I felt that I could finally moved on. The feelings I used to have towards her caused me a lot of pain, but I fought them off. I am now dating another young woman whom I am getting to know and really care for. My sister does not know about my budding relationship yet. I told her to relay a message, that I've moved on, and I don't and never had any I'll will, but that we were through.
I know she is probably hurting right now, but it was a choice that she made, not I.