First, MWD made the point clearly that you CAN control others by positive marriage affirming acts.

yes, this all will fall apart, that's for sure... you are right on that one.. dead on.

When they tell you that you can't control it. I would just reply

"I am protecting my marriage. I am NOT asking you to get involved if you are uncomfortable, all I am asking you to do is NOT support her affairs by interacting with other MEN... if she wants you to meet OM please simply REFUSE and tell her you are saying OUT of it"

If they are uncomfortable supporting YOU, ask them to at LEAST tno support OM's attack on your marriage, many will agree to that...