Portia, Mlcers tend to revisit their pasts and yes, they even rewrite them. They tend to remember things long ago better than we do and tend to have a very short memory for the present.
There are a combination of factors that help them to feel jusitified in walking away. Depression tends to cloud things and nothing is left in the grey area, i.e., it is generally in the black for them. Whereas, we tend to see all, i.e., white black and grey.
Dellboy has a thread on rewriting history and you may want to visit there to see what the discussions are taking place.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
