Fighting is an integral part of life. But how we fight matters. Fighting fairly, with principal, and constructively, with care not to needlessly injure is what decent character is all about.
Manipulators are covert-aggressors. They’re out to win, dominate, and control but don’t want to be seen that way. If you knew what they were really up to, they’d run a higher risk of being resisted. And if you knew what they were really like, you’d be more wary of them. They’re the proverbial wolves in sheep’s clothing.