I find it somewhat interesting that he still can't/won't admit the A.
He really did want to have it all. STBX wanted GF to end the affair w/him so he wouldn't have to?- pretty spineless. Then he was hoping he could continue to keep you in the dark and work on patching things up w/you?
How long did he seriously think he could keep all of this a secret?
I'm a bit floored.
You will be right in your own time, my friend. For now, be really, really pissed off and process that anger in any way you damn well please.