Wow. What a selfless, composed thing you did to point that man's wife in all the right directions. You did her a favor. Engaging her in more desperate, emotional conversation would have been heartbreaking for both of you. I applaud you.
I can't imagine how hard this must be for you. My H's OW was not local. I awoke (or was already awake) every night during his A in those familiar wee hours to have him downstairs, on email or the phone, with her. Some nights coming to bed after 5am. I remember those things well, and how painful and difficult it was. How I prayed for strength, and He held my arms up during the battle.
All of that to say, I am humbled by those of you with S's whose A's are local and ongoing. I know God will hold your arms up.
Forget the former things; do not dwell on the past. See, I am doing a new thing! Is 43:18-19
If it seems slow in coming, wait. It's on its way. It will come right on time. Hab 2:3