A friend going through a bad break up with an AP. The OH of the AP found out months ago and refused to talk to friend. Since then, the AP has said they want my friend to wait for them, that they still love them. They meet semi regularly, and the AP has said that they intend to ask for divorce, but lack the courage so keep putting it off.
Problem is, I vaguely know an acquaintance of the AP & OH who says the AP's OH has no idea they are still in touch with my friend. Do I tell my friend? Tell the AP? Tell both? Say nothing?