A mistress seduced my husband. Can I sue her?

Legal analysis: Yes. The other party may be suspected of bigamy. The determination of bigamy in criminal law is divided into two situations. The first is a person who clearly has a spouse and is registered to marry others, or a person who clearly has a spouse but still lives with others in the name of husband and wife, which violates the principle of monogamy; Second, knowing that the other party has a spouse is still registered to marry him or knowing that the other party has a spouse is still living together in the name of husband and wife. "Knowing" includes knowing in advance and knowing afterwards that this relationship will last. The determination of bigamy depends on whether the two parties constitute another kind of husband-wife relationship.

Legal basis: Article 258 of the Criminal Law of People's Republic of China (PRC) stipulates that a person who has a spouse commits bigamy or marries another person knowing that he has a spouse shall be sentenced to fixed-term imprisonment of not more than two years or criminal detention.