But love? is this the guy you went on a second date with the other day? and he had the photo of his separated DW up? and you commented upon it?
Love, you are getting WAY too emotionally involved way too early.
Why would you be devastated? you barely know the guy, really! The guy is possibly a player, and who can blame him really if his wife did the dirty on him, he's no-where near ready for a relationship either! Thank your lucky stars you found out now rather than 6m down the line!
You need to learn to be with and enjoy yourself, love yourself and demand the same from others, don't go chasing, I feel you may be giving off desperation vibes, and that always get the bastards flocking. 
If I were a guy and you came into my home on the 2nd date, and made comments about the photos I had up in my home of the mother of my kids, I'd be looking for a way out too. sorry, but I would.
Reset your guy-radar, don't go in looking for marriage, look for fun, enjoyment and friendship. anything else that develops - over several weeks/months - is a bonus.
Stop thinking you have failed because you are not in a relationship. You have not. I'd be happy to be on my own forever than spend another second in my last relationship. I don't care if I ever find anyone again, I love myself, though could do even more IYSWIM, but it's early days and I have plenty of time for me and my new freedom.