Yes, do what my father did. Say this before you give him a chance to speak.
Tell this CO when it comes to my household,mind your own business! I might suggest to state," Stop spreading suspicious lies against me. My wife has reported that you have been singling her out to talk with her,it sounds like your trying to start an affair with my wife. Please, stop flirting with my wife." Do not here him out with excuses. I been wanting to talk with you alone to letyou know that I am on to you and feel very offended by your flirtatious attitude."
Do not answer any of his foolish allegation and make him feel your anger first.
That will work,he will just leave you and your wife alone. Because of his hidden motives! All men have them.
That is what men should do because they love their wives. All that other stuff is just an excuse to cause a wedge between you and your wife.
Men are such weenies to talk with another man's wife without the hubby around! Behind your back but in public makes it worse. The bible calls it wicked!
I know he is innocent but who cares!