I am caught up with your sitch now. You have been getting a lot of good advice here. Especially with your H and all his issues (which he has a lot of). I am glad that you had a nice evening and just did normal family things together. Maybe, a lot more of those will make your H think really hard about his life and what he wants. I see that your basement is pretty much your H's area now with all the "manly" decor all over.
It is good that you did not even grill him where he was for five hours. If your gut feeling told you he was with OW, then it is true. Really, you can't control him anyway. As long as you are doing things that make Cathy happy, then you will be ok. You have the Lord behind you, infront of you and beside you. So, never fear. Glad your Faith is what is keeping you sane throughout all this mess. Enjoy your day today.