I think it will only come across as "sullen, petulant child" if he acts that way when he sees her again. If he's calm, fairly upbeat and confident, I don't see any real harm in it, although he went farther than I would have (and that's saying something ).
I do like the moving back into your own bedroom, and moving her stuff out.
I do like the shock-and-awe exposure, all at once and without forewarning, and I like how you DID give her another chance before you did anything further that would go scorched-earth.
I do like the immediate financial moves.
Mike, I think you should take the rest of the day today and tomorrow, and see how you feel about all of this by then and maybe pull back a smidge (like with the pictures). I'm personally not seeing "sullen petulant child" as much as I see a little "creepy" factor with how quickly you did all that, but that's just me. For now, I would focus on your financial and legal moves, including setting up an initial consultation with a good family law attorney -- preferably one who specializes in "men's rights" and paternal custody issues. You don't have to DO anything yet, but it's good to know your rights and potential vulnerabilities as soon as possible.
You've got a lot to process here. Be good to yourself, and take your time.
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