Does divorce occur by imagining a quarrel with the wife's family and repeating the phrase "Go to your family's house, I don't want you" to oneself without being sure of having uttered it verbally, due to obsessive-compulsive disorder?

As long as you are in doubt about uttering the euphemism, nothing is entailed by it, because the original state is the continuation of the marriage, and it is not removed by doubt. So, turn away from these whispers and do not pay attention to them, for indulging in them leads to evil and tribulation, and turning away from them is the best remedy.