She offtent talks of her exhusband and it's putting me off.

That seems a little odd. I certainly have not talked about my ex girl friends very often. My wife does know about them, after all some of them show up in my fathers home movies and family pictures. When the slide of me and a girl posing in front of some building or monument comes up on the screen she does kind of need an explanation. 

She knows about some of the funny things that happened when I was dating the proverbial "colonel's daughter" when I was in the army because she was present when those types of stories were being told. When an enlisted man borrows the colonel's car to take his daughter out over a 4 month period there are bound to be some interesting things happen. Then there was the time she took me to the officer's club as her guest. My company commander was there and he was NOT happy to see me in his private stomping ground.

Those kinds of stories get told when you're sitting around with a bunch of friends but I surely don't bring up any mention of exes in daily life.

We're in our social security years now and there are several women we meet in diners etc. that I dated many years ago. She knows about them. The guy she was dating when we met stopped in recently to see her when he was in town and we all went out for dinner.

Ten years is quite a while to still rate a daily mention. At the very least I would consider it very rude to keep talking about someone in front of, or to, my new partner.

 

Thank you. Perhaps I should muster up the courage to polity tell her I feel awkward when speaks of him so often. Maybe she doesn't realize the frequency of the topic.

Do you have a mutual friend you often see who might mention it to her?
I don't know exactly how to do it yourself without it being very awkward and possibly not well accepted.