I was about to jump on you for having your H put through the ringer in that others are fielding arguments against him. In recently been having put through a "grinder" for whatever differences of opinion I have, I have an intimate knowledge of how unfair it is.
I read your original thread where H wanted to convince you to be part of the swingers lifestyle. Obviously you did not see fit and it was a sticking point in the relationship. I agree with you.
I have the same belief, if you get the formula good at home ( in the bed, emotional connect ) - putting others in there will contamininate and weaken it. Along with various venereal diseases, AIDS, etc and do you really want that many people up into your personal business ( wifes vagina? ).
I'm not sure if you should hate him, its wasteful and you drink poison for something he's doing.
You can forgive the guy for his shortsightedness, and not understanding how a extreme lifestyle is costing him a marriage to someone who loved him.
Your doing right, and you have lots of support here.
Continue forward with divorce proceedings and get it done.