YR - of course he left the paper on the counter so you could see it. It is his outer child acting up, if you like. He is trying to get a rise from 'mom'. You aren't his mom.
Please, do what what Jack said and go back to basics: MLC 101. It may or may not be a repeat performance. I suspect your h is testing you, and you sound desperate to keep him. He will pick this up in your body language. Try to see this is something he HAS to do, unfinished business . Everyone who has been through this is telling you the same thing regardless of whether their marriage was restored, or they learned to live beyond the MLC. You managed fine alone, and if necessary you can do it again, Doesn't mean you want to, but you can.
You don't want this, but it isn't within our wanting, unfortunately. Maybe you too have more to process, dear YR. Please leave it to the man upstairs. There is so much support on these boards, it is wonderful. Hugs.