What would you do if you had been married for years and had not consummated the marriage?

A number of years ago my wife went on a trip somewhere with a group of women. There was a woman (who I think my wife must have known from high school) who was a bit of a germophobe and never used the same tooth brush twice, just tossed them and got a new one each time. So somehow the topic of sex came up and she claimed her and her husband did not have sex because obviously sex is gross. Supposedly her husband had agreed to this before they married. I remember thinking, gee, I wonder if he's sleeping with someone else and was this part of the agreement? She had grown kids from a previous marriage, so obviously she hadn't always seen sex as gross.