Gohack I think you are being unnecessarily hard on yourself. You acted in good faith, lots of my friends have had periods of being separated but living together one couple for 6 long years so it does happen. Your gut feeling was right and you did the right thing. He's the one who is married. I do know it's hard going but process it and move on 
sassy listen to those red flags. He wouldn't be attentive enough for me. Time for more irons?
I have a system for OLD and Freaky yes, it is a bit like gardening except that I don't hang about.
How do you feel about MrFamiliar Goldfish? From your post it sounds as though he's the last man standing if you had 10 irons and you had to get rid of 7 would he be in your top 3? If not I think it's time to look for more irons again.
lastnick you will get a date. Is it worth stepping away for a day or two and doing some things you enjoy before plunging back in again? I need to have the right gung ho attitude for OLD and if I'm not on top of it that's when I let the meh irons creep in.
FWIW I don't like Tinder either.
I have children harriet and even when they were small I could have sent a text the same day. I think 3 days is too long. Don't settle for crumbs if he wants you he'll make some effort.
Willmum step away from your phone, distract yourself and do something else. Please remind me of this when I'm waiting for contact too 
DrFoxtrot it's good that crumpet sent a text but like harriet you are the prize and it doesn't seem as though he's seeing that right now.
Freaky any news on the timing of the date with bacon?
Having read back my post is quite firm today but I think hope I'm echoing MH and WMLB. Having been a thread lurker for ages you all sound brilliant and far too good to settle for waiting for days for contact and scraping the bottom of the barrel. I do think that to some extent at least we get back what we put out so if people set their OLD expectations high then they'll get better irons.
I have a quick drink date tonight with NotBanksy, I'm in his city going to a gig at about the time he finishes work so we're meeting up. If it goes well we're on for tomorrow night too. I'm quite excited about it. I hope he looks like his photo.