I would never suggest a bluff. It doesn't work. But, I told mine three years ago that he could have a separation agreement. We agreed on terms. He wouldn't sign. Still trying to get that or a divorce. Sometimes when they use it to emotionally distance or hold you at bay without really wanting it. You can't force someone to stay married. If he wants it he'll get it. But, I think there is something to telling them you won't stand in their way.