She may not remember the directions to any place.
She may not remember ANY piece of trivia about sports or movies you ever mentioned to her.
BUT she WILL remember anything you ever did that ever pissed her off, to the date and second;
every fart, every dirty sock left on the floor, every dish you left dirty, every time you forgot a birthday or anniversary,
absolutely ANYTHING even if you have no recollection of ever having done it (and quite possibly, did NOT ever do it).
Also, do not test her powers of observation - she won't remember even one damned good thing you did, but she
WILL notice one cookie missing, one piece of candy missing from the kid's Halloween, one drop of booze from the
liquor cabinet.
Do not tempt fate. You've been warned.