Do I have the right to take my husband mistress to court?

Yes, but . . . Alienation of affection lawsuits are possible, but difficult, and rarely result in monetary award to the plaintiff. Keep in mind that there are two participants in this arrangement. Perhaps counseling, or a consultation with a divorce attorney would be more appropriate responses to the situation.

The lawsuit you are considering is called alienation of affection. It is frowned upon in Illinois and rarely successful. Your husband is equally responsible for the infidelity. You might wish to consider speaking to a family law attorney about your options, including divorce.

My colleagues are correct. The likelihood of any positive results for you will be minimal. And as a practical matter, you will need your husband to cooperate will you to successfully make such a claim. There is not much you can do other than to dump your husband, with the knowledge that at some point in the future, he will probably cheat on her, as well.

You have little hope of succeeding in an alienation of affections lawsuit. I would recommend that you find a very good therapist to sort through the feelings that you have because of this betrayal by your husband and this woman.