Is my wife attracted to her coworker?

[Another Crone]

Who knows, Jack. But since your wife is in the entertainment business and actively working as an actress... she's in a profession that encourages quickly bonding with co-workers in order to produce an excellent product and then, when the show is over, moving on with little looking back in order to conserve the energy required for the next production. That's how it works. People may seem close during a show and not find the time to visit again for years.

Because of this, the people (like a husband) who are NOT "in the business" are of extreme importance in their lives. You provide the consistent. You are the reality that holds through all the constant change that being an actress requires. Please don't doubt your importance to your wife.