Well, this is what you call a majr epiphany and it is the worst thing to have happened. Because by now she must have also named your future babies and are in fact working out ways to handle her role as a mother and a wife. But to be honest you do not want to ruin her life by getting into something for which you have no feelings anymore. You should show her your disoriented side and may be she can cure you of your insanity, and if she cannot then you sit and have a good talk. No other way bro, there is no other way in which you can do this.