These women may have a need to feel safe because they have been abused or hurt in the past. They think if they "control" a man, they feel safe. In reality, the woman engaging in mate poaching is controlled by the desires of the married man. He is the one who chooses when to see her, if he will leave his wife and is usually the one who ends the affair. Essence Of The Married Man
Regardless of the reason, mate poaching can lead to emotional, physical, mental and spiritual pain for all parties engaging in the behavior.