The more he doubles down on all the worst troon cliches (sexualised content, furries, "uwu" style typing, going on and on about how the hormones have broken his dick 'n' balls...) the more I wonder how long he'd been having the thoughts of trooning out, and if his wife ever got an inkling that something was off - did she ever catch him wearing women's clothes (hers or otherwise) or looking at tranny nudes, and was this going on even before they got married? The trooning out was so sudden, but AGP doesn't happen overnight, it's something a man develops over time.
Seriously doubt he and his ex are on good terms, given she's still deeply religious and on the old fashioned, "men have to be manly" side, if they do indeed have family movie/game nights to try and give their son that sense of normalcy that should come with having both parents present in his life, she probably has to hold her tongue around him even though she's definitely thinking he's ruined both himself and their son's childhood. If I were her I'd just take the kid and run, cut him out of my life, better to have no dad than a degenerate father who insists you now have two mothers and posts sexually suggestive pictures and brags on social media about how useless and floppy his dick has become on estrogen.