I understand the feeling Natus, even though my experience wasn't quite as profound, I recently had someone from my sitch (my W's only friend who supported the A) suddenly reappear in my "New Life" and it brought a whirlwind of emotions with it.
It's nice that the affects are not quite as strong anymore, kinda like a kiddie rollercoaster as opposed to extreme adult coaster, but it [censored] that we are still affected at all.
I can't blame you for calling OM's W back, my curiosity would have gotten the best of me as well. Heck, I may have even asked her if she wanted to go out for dinner for a night of wayward bashing, haha.
M - 9 1/2 years 5/5/16 - Bomb drop - 3 week EA 10/31/16 - We sold house 01/10/18 - D Finalized