World, I don"t think your interactions with your wife are going to matter one way or the other. I think you need to do whats best for you. Unless my MLC was different its not going to matter to her. She will either get through it or get stuck. If she gets through it she will probably be closer to the woman she was before MLC. If not you will probably not want her as who wants to be with someone who lies, cheats, is moody and unhappy and blames everyone else for her unhappiness. This may not be your wife as im talking generally.
I watched EPL a couple of times. I think there are two scenes which speak volumes. At the end of the movie she talks about her journey and states whether it is an internal or external journey for everyone. To me the the only way you get there is internally and coming to that content peaceful place inside yourself. If its external you get the carnage that our wives are putting our families through. The exteranl journey takes you through affairs running away etc. Your internal journey teaches you that your setting, actions etc may change but your internal can be at peace anyplace.
Also at the end of the movie with the new man her first instinct was to run when faced with a decision. It took the guru to clear her sight. At that point in her journey you would hope her feeling wouldn"t be one of running again.