If I were you, I’d be worried.
Your suggestion that her friendship with this co-worker should extend to you and the co-worker’s wife in a double dinner date was a good one. Her response — not so much. 😳
Lots of people have affairs in the office because they end up spending so much time with opposite sex co-workers in an environment that has none of the stress that a home life [i]can[/i] have. Since you’ve been married for ten years, tell your wife that you’re uncomfortable with this relationship that has bled into your weekends together and ask her if she cares about these feelings you’re having, and if so, how might she make you feel more comfortable.
At the same time, this is your cue to turn up the romance in your relationship with your wife. After ten years the home fires can burn out easily from neglect. It’s time for you to dial up the sizzle. I’ve written a book called Romantic Date Ideas that you can download here [url]https://www.askapril.com/relationship-dating-advice/romantic-date-ideas.html[/url] for only $14.95. It’s got GREAT and easy ideas for dates at all price points (starting at zero!) for couples who want to put the X back in their sex life.
Work these tandem techniques (ask her for her support while you dial up the romance) and let me know if that helps.