It is not illegal for a mistress to destroy other people's families. Generally, it is a moral condemnation of the mistress' behavior of destroying other people's families. However, if the mistress wants to marry her knowing that she has a spouse, her behavior will be suspected of bigamy or sabotage of military marriage, and she should be punished in accordance with the relevant provisions of the criminal law.
Legal objectivity:
Article 258 of the "Criminal Law" Whoever has a spouse and commits bigamy, or who knowingly marries another person who has a spouse, shall be sentenced to a fixed term of not more than two years Imprisonment or criminal detention. Article 259 Anyone who knowingly lives with or marries a soldier shall be sentenced to fixed-term imprisonment of not more than three years or criminal detention. Anyone who takes advantage of his position to rape a soldier's wife shall be convicted and punished in accordance with the provisions of Article 236 of this Law.