What should my husband do if he receives a text message from my classmate? .

How did she know your password? You should ask your husband. Besides, the best solution to this kind of thing is to let your husband talk to him through your husband. If you can't talk, you have to choose, because from what you said, he must still have a good impression on your husband and regard you as an imaginary enemy. Now that he has regarded you as an enemy, I think she will find a way to get it if you change ten yards. Be sure to deal with it well, or your relationship with your husband will be very difficult. It's best to let your husband see it, and don't complain too much. Just seek a solution with him, so that your husband hates her more and cherishes you more, and thinks that you are a person who knows wisely, so as to better grasp his heart! ! !