Hey,
Other people will have other ideas about what to do, or how to approach situations like this.
But remember, you're basically complaining about it, and that sort of strengthens the idea that "you're right" and in a way this feels good because it satisfies the ego. The real way to get on with it, is to try to consider everything that happened just as it happened, not how it made you feel, but just be aware of what happened and hope that forgiveness starts to flow through. Because you win, then, if you can really forgive, and you might find that you have genuinely outgrown the need for her in your life, and you can reach out and help her if she needs it, without any emotional garbage, or attachments.