OK - I used to ask myself and everyone else the similar questions you are asking. More than 1 year later I still do not have any answers but time does heal all wounds. I no longer care that I never got those answers and the personal journey I am on does not allow me the ability to dwell on it.
I know that I have put in the work and I know that she is still the same person, has done no self-reflection, and chalks our R up to 2 people that grew apart from one another. I highly doubt she recognizes her mistakes and will not make them in any of her future relationships.
Over time you will become more excited about your future, excited to meet another partner, and happy with yourself and the man you have become.
Just remember you don't get to that place by constantly looking in the rearview mirror.
