Even when the children are of adult age, the psychopath will still find a reason to torment you.
The psychopath becomes bored with their spouse/victim, because they have nothing more to offer the psychopath. So the psychopath simply moves on to their next victim, of course not before slandering, spreading lies, and accusing the victim of horrific acts against them. They do this to protect themselves against what the victim may say about the relationship. By bashing the victim first (before the relationship is even over) the psychopath is making sure their 'story' is heard before the victims.
This makes the victims story look false.
After all the psychopath has already warned others that their soon to be ex, would probably try to accuse them of abuse or cheating, to simply get revenge because they didn't want to be in a relationship with such a unstable person who has deep mental problems.