Don't get freaked out, I have been through it to the end and you know what?! Nothing has changed, everything is pretty much the same. The only thing I think about from time to time is what if H married OW now. I am not really prepared for that but if it happens I will deal with it. I am not going to borrow trouble. I don't think he will marry her to be honest.
Breathe and relax, like BND said.
Everything happens for a reason, maybe Dad needs to find that it isn't better out there, he needs to realize how good he had it here. Maybe he will find God and that is the most important thing when he finds Him he will know he is supposed to come home.
