It's okay to show the WAS things either before they decide to walk (if you get that much warning), or after they are open to reconciliation.
In the meantime, you are in the Last Resort Technique though, and you are absolutely not allowed to pressure them or try and convince them they have made the wrong decision or that you can work it out.
You have to apply some reverse psychology if you are using the LRT. Any reasoning or convincing is most likely not only going to fall on deaf ears but backfire on you. 9 times out of 10 you get an eye roll and a "this is why I can't be M to you anymore, you are so controlling / you never listen to me / my feelings don't matter to you / etc."
Michelle - Proud DR Rockette S: 28JUL07, D'd: 29OCT09 http://tinyurl.com/27j9qo2