Personally, I think once a spouse tells you they are done, there is no chance for reconciliation, and they follow through by filing for divorce and become (or are) involved with another person, you owe them nothing. Therefore, it has to be about you. If you have children, it also has to be about them and how you think it will effect them if they find out that you are dating. That's the one I struggle with. The children are hurt enough under these circumstances.