Even a faithful spouse “choosing” to divorce their cheater is really not the choice.
They had chosen to be married for life to a person who left all others. However, that person decided to change things. They chose adultery. That just left bad options for the faithful spouse.
The faithful spouse choosing divorce is a person who is choosing the mercy to end the abuse as adultery is abuse.
Divorce was not sought out. It became a necessary like a surgery to amputate an gangrene limb.
Christians need to understand this. All divorce is not the same. This sort of divorce is a mercy and gift from God to preserve the life of the faithful spouse, I am convinced (e.g. Mt 19:9).