And this is why a female (not all, but mostly) might reject the person who did everything for them and love or be obsessed with the person who treats them badly. You can easily observe and find these types of people, but then again, you can't put every girl in that position. Because the truth is, to be fully able to understand one's personality is nearly impossible for any mortal especially a female's.
But for Vasana, as a divine spirit, it was easy for her to see through anyone's personality and nature because she can see what others can't; being from a high dimension grants her the ability to see what a person themselves cannot see inside them. She can literally see through the conscious, subconscious, and unconscious memories of anyone.
