peace- I am so sorry to hear about the downward spiral that your H is in. You seemed to have already sensed that something like this was going on so hopefully it wasn't too big of a shock. No matter, I am sure it still hurts to know what he is doing to himself.
My opinion is that you keep doing what you are doing with the kids. Tell them that dad is sick and has problems to work through. Nothing that they did caused any of this to happen and that he still does love them in his own way. And at this point, all that you can do for him is pray for him and keep hope that he will get better.
And yes, all of your friends may seem like they have normal lives, but I'm sure their lives aren't perfect either. Try to appreciate what you have now even if you are striving for something better.
