Fathom4:
I am sorry. It seems, as you said, that your wife allowed her own tattered self-concept and hormones to devastate the lives of four people. It has been my experience that many people will initiate counseling. While this is in general a good sign, some people who initiate or submit to counseling do not seem interested in the hard work of self-evaluation and change. Rather, they attend counseling as a way of pacifying the still, small voice of God in their conscience. Then, at least they can say they tried.
Others pursue the hard, narrow road of serious self-evaluation and change. Biblically, this is true, inner repentance, a genuinely rare concept in a materialistic world. This is the way of the Word, the Way that is the Word. This is the road less traveled, but it is the road by which one discovers grace and healing. The paradox is, once the Grace and the Healing are discovered, one recognizes that it was there all along. May that Grace and Healing belong to you.