As far as my parents who married in the 50s led us to believe, they never had any boyfriends or girlfriends before each other, maybe they didn’t, but it seems rather odd.
On the other hand I think it’s strange when married couples go on and on about ex partners. What do you do? Do you mention other partners who might have lived with or previous spouses or do you do like my parents did and pretend there is only ever been one?