If her telling you makes you want to confront him with it - then tell her to stop telling you. Otherwise, take notes for that potboiler novel I suggested you write. He's giving you plenty of juicy material!
I mean, really - "I want my wife back, she's all I ever want, I don't even want to think of another woman... hey, can you let my old girlfriend know I'm on the loose, wild and free?"
It reminds me of the ADHD t-shirt which reads, "My mother says I have ADHD which means I have a short atte...hey, look, a dog!"
I know you said before that you trust Jill - right now I would not be confiding in ANYONE who is in ANY contact with your husband. That way, they can't let anything accidentally slip. I had to do this, even with my best friend, because I knew she sometimes car-pooled with my stalker's wife and he had involved his wife in trying to interrogate my friends for ANY information about what I was doing. I continued to have coffee with my friend and to tell her anything innocent which I knew was common knowledge anyway. Eventually my stalker and his wife began to leave my friends alone (because he moved on to other targets, plus I had sealed up all information sources).
It wasn't that I minded him knowing - I really don't care who knows, with most of my life - it was just that he would distort it and make me look bad. I told a friend at church that my part-time job had temporarily scaled back because our latest magazine issue had been put to bed and we had a couple of weeks' break; she was 'interrogated' at the local café ("Oh, what's my good friend Marg doing these days? I hardly ever get to see her, how is her new job going?") and the next I heard, he was telling people around the town that I was about to lose my job. This was NOT good for my credibility, or my reputation I need for my freelance work. Of course, all said in a tone of, "Poor thing, I wonder how my old friend is feeling, with her life falling apart around her?"
Even my best friend would not be immune, I knew, to an innocent question from another woman. It is so easy to divulge information which can be misused; only you REALLY have the vital need to preserve your space. To our friends, even our best friends, we are less important to them than they themselves are. It's only natural.
So if you're going to let Jill keep telling you things (and I do understand the temptation; besides, it IS firming your resolve) then you have to:
1) stop thinking, "I must talk to him about this," because you never can; and
2) guard your own words carefully. Very carefully. Do not burden her with your concerns, unless it is about the high price of washing powder. You do NOT want the slightest chance of information going the other way. Even accidentally. Because if, at some later stage, you discover he knows a great deal more about what you've been doing or saying, than he should, your will first be thinking, "Jill must have told him," even if it wasn't her, but someone else. Don't do it to yourself, don't do it to Jill.
But please, for all our sakes - if you're going to keep listening at Jill's keyhole, take notes. I want to read the novel one day!
Marg