Hi morgan, I have been reading your thread for a bit. I finally posted my story on Infidelity. We have a few things in common.
First of all, I am sorry about how you end up feeling when H gets frustrated with you. SOOO been there, done that. And lately, I have been able to see that its not me, its him, and why that may not help him, it helps me. I do not defend whatever annoying behavior I am doing anymore.
Second, while my H is still in the house (at least physically), he has slept on the couch for 2 months. My kids (D5 and D3) notice this obviously, and may not know why, but know something is different. I have noticed small changes in them (D3 being more clingy, asking "Where's Daddy" when he is gone, D5 being more whiny around the both of us). But when I bring it up to H, he doesn't see anything. I decided to tackle the behaviors myself, and if anything gets worse, I will not ask him what he thinks about a counselor. I will notify him when/if they ever go for help. We are the mamas, we *know* our kids. Strike that, because some of the daddies on here know exactly what is going on with their kids too. I should say "We aren't the ones in the fog". We are the ones who have to be the rock, and not be in some sad state of denial about the changes going on around us, like our spouses.
I am glad to see you have calmed down a bit, but boy I know how you felt. Take care.