I just want to say that you aren't alone. I know exactly how you feel. I'm so sorry this is happening.
Just quickly-- take the focus off your H and put it on YOU. So you aren't talking about anything but the bare minimum... haha, from my perspective at least he isn't trying to shove his feelings down your throat about the OW! But take this space you have now, not physical but emotional-- and take care of yourself. you can't take care of your kids unless you can take care of yourself first. Don't read into your dreams-- you are hurting, with good reason, and just try to step back from this a bit and relax and be kind to yourself.
To your kids, I might say-- I love you. I can't predict the future and I don't know exactly what will happen. none of us do. But I do know that I love you guys more than anything in the world and I will always, always be here for you no matter what. I know you're scared. I am too. But just know that I love you and always will.
xoxoxoxo
Me (46) H (42) M:14 T:18, D9 & D11 4/19 - 12/19: series of escalating BDs 9/20 - present: R and piecing