If this.. then that...
So if it is not an implication that the relationship is over if she doesn't get one-on-one sexy times with the husband, how is it that it's an implication that she could do this if she did get one-on-one sexy times with the husband. Is it not one and the same? If the relationship is over if she doesn't get that, but isn't over if she does get it, how is it not an ultimatum?
Ultimatum: "A final demand or statement of terms, the rejection of which will result in retaliation or a breakdown in relations."