WBW I can only echo what has been told to you about this. I do relate to the anxiety ... I have been in similar situations with H too. Him asking to talk and having no idea about what. Assuming the worst - bracing myself for it.

Remember you don't have to say anything back to him no matter what he talks about. You can listen, validate and say you will need time to respond. Take your time to process and respond, not react.

You can do this WBW. We are here in this together.

TPS
Me: 44 H: 42
M14 T17
S10 D7
10/10 H moves out after death of his father-same month
21/04/12 H is 'DONE'
04/05/12 OW/PA confirmed (rumors from 2010)
July '14 H ends affair
May '15 H moves back home