Hi Sparks - catching up a little - one thing from the other day, I think it is fair to call your wife on anything that is straight up crap/untrue - others may disagree with me. But, my H said he'd been wanting a D since before we had kids - I told him that was a load...that our daughter was created in a loving, happy place. I waited till later and calmer and just said I did not agree with that part of what he said. I would save disagreeing for things that are clearly just W having a big pity party. With her sexual orientation issues, she may truly feel that way. It may help your validating ring truer if you occassionally, non-confrontationally disagreed.
Also, I am on the fence about your co-parenting...H left me with a 5 month old and I suck it up and care for the baby and our 2.5 year old when he is not around. I make him suck it up and change poopy diapers or whatever when it is his watch. I leave him alone with both kids (not 100%/all the time - I care about their welfare) She's got to understand that the life she is choosing will stink, she's going to have some tough times. Again, I am on the fence, because I wish my H would show up and help out more. It means a lot when he does.
Faith is, at one and the same time, absolutely necessary and altogether impossible. --Stanislaw Lem