Re your H wanting to talk?

Too bad... tell him to write it down in an email if he has something to say and you will read it when you are ready to.

Tell him you do NOT want to HEAR his VOICE right now.

You will have a lot more control if you work from writing so you have time to reflect...

Addicts like to use conversations because

a. They aren't recorded
b. They are too jacked up on their affair to write a focussed letter

Work through email, its to YOUR advantage right now to use email.