36,
I think the isolation you feel probably may partly result from how you and your wife have been handling things since the affair came out. Your wife has constantly tried to rally people to her flag, whether it was the crowd of affair cheerleaders at work, or the friends that she badmouthed you to and played the victim to, or the OM that she colluded with (going so far as co-operating on the false DV calls), and even dragging your sons into the mess and complaining to them about the horrible trauma she is suffering because you do not believe she is remorseful. How she can do that after saying to you that what she was 'sorry' about was getting caught is anybody's guess, but the point is, she is a past master at manipulating situations to her advantage. You are not.
When you first posted, you were trying to tough it out on your own, while your wife was actively rallying as many people as she could to her cause and spreading lies about you.
As time passed, you opened up in your posts here, saw your physician, became open to counselling, and I hope that using these resources has benefited you. However, you are a square-dealer, not a manipulator, so you have not been out on the campaign trail, telling all and sundry about the details of what your wife has done, and you had no intention of dragging your kids into the issue, so you did not sit them down and explain everything that your wife has done to you, some of which border on aggressive acts that are a long way from the supposed remorse that she told your son she has been feeling. You may want to ask your son if he thinks a false DV charge and you being put in handcuffs was an act of remorse, or an act of aggression, and see if he can figure it out. The trouble is, he has had only one side of the story, and he has probably been treated to a whole truckload of lies and fairytales.
So of course you feel a bit isolated, because you are a decent guy, and you do not like airing your dirty laundry to everyone you know. Your wife feels no such hesitance, and she will willingly mislead people and haul your kids into it if she sees any benefit to her in doing that. Thus, she has rallied a crowd behind her, while you have a smaller gathering behind you. However, the support that you do have is solid, and you have done no wrong.
I think it would benefit you to set a number of the key players straight about what you have been subjected to, because the actions of your wife in not just having the affair, but in how she has treated you afterwards, have been unusually aggressive and bullying, and verged on abuse at times. There is nothing wrong in stating your case, or letting people know what has been done to you, particularly of your wife is so active in pretending she is the victim of something she perpetrated. In effect, your wife has isolated you by talking to all the key players and trying to get them on her side by giving them a boatload of bullshit.
I know that we are not so much people as words on a screen, but we are with you in spirit 36, and even if there are times when we may say some hard things, it is done because we want the best outcome for you, and because we do not want you to be victimised any more than you already have been.
I often wish that we could be with posters in person, to go and have a beer with them, talk things through in person, and if necessary, go and have words with people on their behalf. I have felt that very much in your thread, and I am sure there are several more people here who would be with you if they could be.
That reminds me of something I may already have suggested, which is to do some internet searching to see if there are any local support groups for betrayed husbands/spouses in your area. Even if there is one that might be a bit of a distance away, I think it would be worth going along and telling your story. You would be surprised at how much support you will get.
36, you will prevail, one way or the other, if you stay true to yourself and you do not betray your core values and principles. Those are solid, and you should not have to compromise them to bend yourself into a pretzel to accommodate the questionable actions of another. Your wife may have betrayed you, but she cannot make you betray yourself, and from everything I have read here, you are a good and decent man who should have been cherished and valued.