For example, find your husband's phone number from his mobile phone, tell her calmly, tell her that your husband is yours, and see what she has done.
If not, try to learn from your husband.
Get some information from her mouth, the more detailed the better.
You can find her unit and threaten her.
You can type her phone number into a small advertisement, recruit prostitutes, dredge sewers and so on.
Find her family.
Because it is ambiguous, you are not sure about the substantive relationship, so please don't get angry.
Don't let your husband know what you are thinking. Be a hidden woman, or he will think you have plans. Anyway, it is a negative impact.
Don't embarrass your husband. You're not sure. Why bother her, right?
When you have no choice, talk to your husband and tell her your opinion and bottom line.
If it is really out of control, women still have to learn to give up. Of course, not every man will give up his family for a mistress.