I think there are people who are serial divorcers. I mean they keep doing things the same way, and so they keep doing the same thing.
But others can learn from their ways which got them with wrong people and into wrong relating, then they can do better in later relationships.
So, instead of first seeing a red flag or a white flag of truce, I would get to know someone and let that person speak for herself. And you can see if the person is arguing her way along, or growing in Jesus so she is helping you get more real with God and how to relate in love.
Also, Jesus says if we obey Him > "you will find rest for your souls." (in Matthew 11:28-30)
So, a lady can test in prayer to see if what she is doing is getting her into more and more of Jesus Christ's rest and self control. There are both men and women who are trying to prove something, claiming to be called; but if they are self-called, they are not really pastors, but they can be church administrators who have the ability to make things happen.
But the arguing, complaining, controlling, self-abuse, and abuse of others and intimidation and ill temper are not the example of qualified leaders > 1 Peter 5:3. Yes, no one is perfect, but we will see an approved person growing.