I'm married. I have friends of both sexes. I'll go out alone with them if I please. He has the same freedoms as I do. I don't see what the problem is. That is being respectful and not allowing jealousy to stifle your partner's behavior. IMHO, if you can't trust your spouse to go out to lunch or coffee with their coworkers, perhaps there is a problem with the relationship.

Are you suggesting this is a healthy dynamic that all married couples share?

i am not attesting at all to its health, just its commonality

just the ones that will likely end in divorce because somehow the husband thinks a woman will remain faithfully attracted to a witless, scared man for years on end.