I agree with Luvless, no response is needed. Based on what you described it doesn't sound like it deserves the dignity of a response. DB'ing often triggers a soul-searching in the WAS that hopefully leads to growth on their part, but unfortunately it doesn't always work that way. Maybe your W will get there some day, but maybe she won't. But if she doesn't then she's doomed to repeat her failure in the next relationship.
