Is it a sin to be a mistress? Will it be karma?

Is it a sin to be a mistress? Will it come back?

I don't know if there is retribution for being a mistress, but at least your behavior is wrong. You are destroying other people's families, and a good family will be destroyed by you, so your heart will not be peaceful, and you will always live in guilt, regret and regret about your temporary confusion about life.

Is it a sin to be a mistress? That must be a sin, because you ruined other people's families. If that man has a child, it will make the child lose his father. A perfect home will be torn apart by you and a family will be torn apart. Therefore, being a mistress is definitely a crime.