Eric,
I am so sorry to hear about this. After 22 years you would think a marriage would be pretty much bulletproof. Apparently that is not the case.
I truly hope that things work out and you can reconcile, if not...move on and try not to look back too much.
Go to church and find a faith based support group to help you through.
I agree with a previous poster in his contention that many women these days are being sold a bill of goods about what they should expect out of life and their husbands. Oprah and Dr. Phyllis (I mean Phil) are prime culprits. These folks and those like them are trying to tell people that men should be womanish when the wife wants to cry or talk about her emotions and what not, and should be a man when the woman needs someone to lean on, protect her, etc. and should stay the hell out of the way when the woman wants to redecorate 5 times a year.
There is also this idea that people can be happy 100% of the time and that if you argue with your spouse, have disagreements over significant issues, or have significantly different interests, that you are not compatible. My grandparents were married for almost 60 years. They nullfied each other's votes, argued like cats and dogs, and often got on each other's nerves. But they raised four kids and enjoyed an active retirement together. They died about a year apart, she first, and he the next year. He died content with his life and in full knowledge that he was going to re-unite with her. He also remarked on several occasions that she was 'ghosting' him, and thats how he knew it was time to go.
My own parents have been married for almost 40 years now. My wife's parents are in the same class. All have had troubles, but all have made it through.
(Editted because I jumped the gun submitting)
Eric, you seem to have your head firmly on your shoulders for the most part and seem to have no malice in your heart. Try to keep it that way and you'll do fine.
As far as the legalities involved, you know better than I, but I would still say, be nice, be cooperative, be friendly, but be prepared to protect your assetts and interests if things turn nasty.
God bless.