Should I Write A Letter To Ask To Drop Charges For My Husband's Affair Partner?

Located in Indiana. My husband had a secret girlfriend for several months. After we found out about each other, she came and wrote profanities all over both cars with red lipstick, dumped a bunch of his stuff all over the cars and broke a windshield wiper. No other monetary damage, just a mess. He called the cops on her and she is being charged with a criminal misdemeanor. She is only 20 years old. Of course at first I was livid that she would come to my property and do this. Both cars are in my name, I am not sure if she realized this or not. I realized that my husband completely manipulated her, lied to her, gaslit her, used her as a doormat completely. She was not aware that we were even still together. I understand her rage and being completely betrayed by a man that she thought was trustworthy. He is 7 years older than her and I suppose she probably looked up to him. I don't want her to have these criminal charges for the rest of her life because of his stupid decisions. Is it okay for me to write a letter to the prosecutor and if so what should I say?