Most Helpful Girl
Destroying someone's life is an act of anger. Anger is an outward manifestation of hurt and frustration. So she's obviously really hurt inside , and can't control her emotions so lashes out in a violent way. That doesn't condone what she did though, because it shows she's a vindictive person with no self-control
Most Helpful Guy
That is a demonstration of female nature.
It is important for men to ensure that they never let a woman know anything that can be used against them.
Most relationships fail and 50 per cent of marriages end in divorce. Imagine how many vindictive and vengeful women there must be out there.
Never, ever, trust a woman with knowledge of anything, because there is a high probability that one day she will use that knowledge to hurt you.