My guess is that here's where we find out what MJ said to Mephisto just before things went ker-blooey. Here's my hypothesis - she said to him that she was fine with the whole breaking-up-the-marriage thing - for her husband's sake, she would do it - but she wanted to keep her memory. Even if she couldn't be with her husband, she wanted to remember him - and Mr. M, sadistic fellow that he is, went along with it, figuring that he'd get to revel in her mental torture. Now she's finally decided that enough is enough, and she'll try to get back together with her man. This should be interesting...