"Make it clear beforehand that you're his girlfriend and not his counselor or spiritual adviser."
"He should try to see every woman he sleeps with as fully human, regardless of their genitals."
"Ingesting a little safe-and-nonirritating silicone lube isn't going to kill you."
"Instead of cheating, your husband scratches that variety itch with porn."
Taking a quick toilet/phone break doesn't mean you are a lousy Dom
Protecting your spouse from the truth is often the more loving choice.