I have read a post by RCR about the difference between guilt and remorse. This has nothing to do with MLC, but how all people deal with guilt as compared to remorse.
Generally, a person who feels guilt lashes out at those he has harmed rather than accept responsibility. Often they diminish their own actions as being in response to the "offended" parties actions. For example, I would not have broken the dishes if the children would learn to wash them.
Remorse is when the party who has hurt others acknowledges their harm and then changes their behavior to show that they are changing to the benefit of the others.
Remember, remorse is very hard for many people and while an MLCer is in replay and withdrawal, the narcissistic behaviors only allows for guilt, not remorse. Remember, it is all about them, their feelings, their thoughts, their wants, and issues. You are not important and neither are the children unless it is to make the MLCer feel better.
Hope this helps. It is a very simple answer to a very complex analysis of emotional defensive mechanisms, child/parent relationships, prior experiences, and loss of identity.
((((Hugs)))