As long as the troublesome girlfriend is highly attractive, no guy is ever going to call them on these behaviors, and they won’t have any close women friends to call them on it because they’ll be toxic to women friends too. If getting a new boyfriend is really easy because they’re hot, there’s no requirement for them to change so they won’t. There is always some chump with some money that will go along with the drama because it comes wrapped up in such a pretty package.