Since social media, this happens all the time IMHO. I never dreamed I’d reconnect with every ex like facebook made happen. Nobody ever would have phoned to reconnect!

You have to choose one option; stop talking to your friend or not. If you continue in the way you are with talking to her, your wife will likely divorce you. You’d be having an emotional affair.

Your friend said she doesn’t want to leave her marriage to be with you. Is just talking worth losing your marriage over? Which relationship is your priority?