It’s called chemicalization- things fall apart to make things better. I think that’s it or metamorphosis for butterflies.

Jeff,
It feels wierd saying this because you could be my dad lol but it will pass. You still have your life ahead of you. Your kids are grown so its better then them being young and not fully understanding. You spent a large part of your life thinking about another person, making decisions together and planning a future. Maybe this is your time to be you, and find your true self and your true love. It’s never too late.
I read somewhere, maybe it was on tiny Buddha, that all bad luck is actually a good thing. It helps you to reevaluate your life and your decisions. I was going through the same crap and am slowly coming out of it. (My post:at the end of my rope).
You are entering the best time of your life it’s just going to be a little shitty for a while and then I promise you will look back and say “remember when…”
I find it helpful to read my horoscope even if you don’t believe in horoscopes just having something that tells you it will get better puts you in a healthier frame of mind.
Keep a journal, it’s great to look back and see how far you’ve come.
We are all here for you this is a great place to come to whenever you feel down 🙂