Why some girls only target guys that are taken?

These girls actually seek and prey upon men that are happily in a relationship - thereby destroying a relationship and making 2 very unhappy persons. Just why?
Guys are fickle. Tempt them in the right away and they will go astray. Who is responsible if a loose girl can tempt a guy for a one night stand?
Girls - spare a thought to the girl whose happiness you are about to ruin. She could be your sister. Use your charms to land a faithful guy and keep him engaged with your tricks. He will be happy and will make you happy.
Please stop making the life of other girls miserable.
Why some girls only target guys that are taken?
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