Beware- the F word is used, so if that will bother you, may not want to watch. However information is helpful for those of us in this situation. He explains the psychology of these matters and seems knowledgeable, also has experienced this himself.
https://www.youtube.com/watch?v=goDE9ODAAgw
https://www.youtube.com/watch?v=goDE9ODAAgw
Thanks! Very helpful :)