So long as if all men cheat all women cheat too! Course since your proposition is false that makes the statement true so 'If all men cheat, the sky is red' is also a true statement. Anywho, this girl is dumb and incorrect and probably has some deep-seated relationship issues. It's unlikely she'll get help for that though as she is expressing the problem through sex with men in relationships. That's a dumb move though as it's likely to get her punched out when she finds a guy who doesn't subscribe to her theory and pressures him.