Great work on Connecting with the Dance practice...I know you need to do what you feel you need to do. I don’t know how you have the patience I could not put up with it I still have a problem with your W "friend" But like I said you need to do what feels right for you...
As for: “She has requested to sleep alone, stating that she sleeps better without me in there. I respected her request and have returned to the guest room.”
I have friends that are Happily Married and actual have separate bed rooms because of this same reason. BUT they still to have their nights “together”. I would be ok with my wife having her own room. (Which she does) as long as we did still did “share some nights together” I am afraid that in my sitch I am slowly getting too used to not having wife by my side and if it were not for son I am more and more tempted to just give up...
Stay strong buddy...as long as YOU are at least satisfied with your life that is all that counts
And if I claim to be a wise man, well It surely means that I don't know