It sure is weird experiencing a Father's Day while licking the floor of Hell.
Well first of all, count yourself lucky as a lot of dads here didn't get a card, a gift or a wife-prepared meal for father's day so despite everything, that was very kind of your W and you should be thankful because things could be much worse. Second, I know it seems like you're groveling in hell right now but that is temporary. Your situation WILL change for the better, whether you recon or not. It could go either way, but when you look at the vets here that have been around for years, they're all in a better place. Some reconciled, some divorced, and some are still standing, but all are in much better shape emotionally and mentally then they were when they arrived here. So hang onto hope because you and everyone else here have every reason to hope. It WILL work out in the long run.
Look at my signature and how long it's been since my divorce. Saturday my two daughters came in town and they, my son and my XW all took me to dinner and then ice cream. My XW paid. Then we went back to her house and they gave me some bday presents (we were celebrating my bday and father's day). I hung out there a couple of hours afterwards. I sent my XW a text later thanking her and she replied back that she had fun. My point is that even if you don't stay married it doesn't necessarily mean your relationship is over. You will more than likely have some kind of relationship afterwards, and who knows what that may lead to down the road.