Thanks for touching base and letting me know how you are doing.
It sounds like you had a good few days, so that is definitely something to be thankful for. Last night may have been rough, but that is expected from time to time. The key is to learn from the experience, get up, wipe the dust off, and get back in the fight. Each and every time.
I can relate to some of the other things you addressed in your reply. Your schedule sounds a bit fuller than mine, but still, mine is pretty robust as well. I have a lifelong friend who lives about five miles down the road from me, and we rarely see each other. Part of that is because he is busy, too.
I am at the opposite end of the spectrum than you when it comes to interacting with parents at my kiddo's school. It seems like most of the parents at his school started having kids in their early 20's, whereas we were in our early 30's. Don't let the age gap keep you from talking to other dads when the opportunity arises. I love talking to the other dads at my kid's school. Yeah it's a bit awkward at first because of the age gap sometimes, but once the ice is broken it's all cool. It really is.
I've had brief conversations with some of the moms, but it's usually something like, "Are they out of school on both Monday and Tuesday of next week?", and that's about as far as it goes. When I talk to the other dads, they are doing a lot of the same things that I am doing... working, bbq'ing on the weekends, doing activities with the kids, and we talk about it whenever we see each other. I really enjoy that camaraderie, even though it is for extremely brief and fleeting moments throughout the week.
Another thing I can relate to is expressing most of my innermost feelings out here on SI. Very, very few people IRL know about the situation between my wife and I. They think our life is pretty much perfect. On the rare occasions when I do get together with a friend, none of this infidelity stuff is discussed. Please keep in mind that no matter what, your feelings are your feelings. That's not an entitlement, it's just a fact.
Seeing as how you are both members out here, you definitely need to agree upon how much you share out here as well. From what I can gather, it sounds like what you are sharing right now fits within the realm of what is acceptable... as far as I can tell, anyway. I can't speak for your wife.
Anyway, it's good to see you out here having some dialog and interaction with the people of SI. Hopefully some of the things I've been able to relate to with you makes you feel a bit less isolated and lonely. Take care, and keep up the good fight.