Morris then attacked the woman, punching her several times in the face and grabbing her hair through the car window, Prosecutor Donn Reid told the court.
The victim suffered bruises to her face, a swollen lip and some of her hair was ripped out, Reid said.
The court was told how Morris found out about the affair about a week before she attacked her cleaner, who had worked for the family for four years.
After confronting the cleaner over text, the court was told that the victim forwarded Morris “sexually explicit correspondence” sent by her husband, including a nude photo.
The mother pleaded guilty to assault occasioning bodily harm and was placed on probation for six months. No conviction was recorded.
Morris and her husband have stayed together.