What is the ruling on a wife informing her husband about her past before marriage, and is the husband entitled to doubt his wife and daughters after being informed of this past?

A husband's questioning of his wife's past and demanding that she confess to falling into sins is deviant behavior and contrary to Islamic law. The wife is not obligated to answer him, and she erred by telling him about her sins. Indeed, it is obligatory for anyone who commits a sin to repent and conceal it. The wife can use dissimulation and insinuation to deny having committed unlawful acts, without outright lying. A promise of divorce does not constitute a divorce.