H came to see me this evening. We took the dog out on a walk together to talk without the kids hearing.
He has changed his place of work so he will no longer see the EA woman (admittedly they worked in different departments so he didn't see her that much, but all the same) and so he will have more regular, sociable hours. He'll be working fewer hours, and not evenings or night shifts. He says he's done this because he wants me to be sure he is having no contact with EA woman and so it is easier for us to schedule a regular appointment with a MC. He said he told his manager that things were really bad in our marriage and he wanted to be freer to devote time and energy into fixing it.
I was so surprised I didn't know what to say to him. For him to do this without me asking him to is a big deal, but for him to disclose personal stuff to his line manager is so out of character I can't quite believe it. I just stayed very quiet. I said I felt a bit tearful and needed to think for a bit. We talked about other things for a while - just chit-chat regarding the kids and work - we were only out about half an hour.