My wife of nineteen years left me. She is with her new boyfriend. She has seemingly gone crazy. She spends money like no tomorrow. I am a high school teacher and she buys Prada and Manolo Blanak (sp)shoes. She spent $5k decorating her new apartment and said I told her to do so. She strikes me as perhaps being bi-polar, with huge mood swings. She had said that she feels like she is on a precipice, about to make a huge mistake but she goes on this way. Our two children, twins, seniors in high school, aren't living with her or seeing her and she is "giving them their space." When I write this it seems clear to me that I should be walking away and making a new life, but some part of me feels like I would be abandoning her when she was sick. I have been ever faithful, not the perfect husband, but never physically abusive or unwilling to talk or work things out. I guess that is why I feel crazy. I just am struggling to let her go. It all seems so sad and pointless.