"My Ex-Girlfriend Harbours Bitterness Towards Me"

I broke up with her just last month and I have move on fine although sometimes I miss her but I throw away such feelings immediately they appear.

I broke up with her due to her cunning and cheating nature but the problem here is that whenever any one ask her of me she replies them with anger and people have been telling she is really bitter towards me.

Someone came to my house and told me she said she will never forgive me that when I was sick she was there for me but she has forgotten I was also there for her and my own sacrifices I made towards her, well am not move by such manipulation.

My problem now is that some people are telling me to beg her for forgiveness even if we won't be together but for the sake of peace and to forget the past BUT that is against my principle because doing that will give her a kind of victory and feeling that I miss her.

My Intuition is telling me to ignore her that a time will come when she will realise her mistakes and be the one to call me up, I just have this deep conviction in me to just allow her be and keep hating for all I care.

Please I would like your advice concerning this issue.
Thanks.