You mentioned “Single” guy. Have shared my wife for 20 years across 5 lovers. Trust me, a “Happily Married” guy who is “underserved in home bedroom” is a better choice. Single guys can be bragging to others and soon others know. Single guys can also create a marital issue for you. A married guy tends to have the same privacy concerns as you, and usually knows how to treat a lady, often better than a single guy.