Actually, I'd want verification from his wife that the marriage is really over.
As I read it, he wanted to have an affair with you but the only thing standing in his way was your belated morals about the fact that he was married. Cue what seems to be a vastly coincidental request from his wife for a divorce.....and a reassurance to you that your affair had nothing to do with this request. It's a childish way of removing all his obstacles, attempting to salve your conscience in one fell swoop.
He is presumably too stupid to realise that this story actually paints a worse picture of him - and hopefully you will now see it.
Do you want to be with a man who, rather than afford his wife the dignity of a mature conversation about their marriage, waits until she sacks him, so that she can be the bad guy?
Do you want a man who rather than resolve admitted problems in his marriage, lines up an affair?
After 7 weeks it is unlikely that you know this man at all, but I suspect that you are being fed a line here.
And all this is saying nothing about your own behaviour in this, but suffice to say I think you are in huge denial about your actions thus far.