I'm dating a Mormon girl right now but we both understand that it is most likely isn't going to last long. We had lots of sex and fun.
Remember she will only try to convert you because she thinks it is in your best interest. She probably has not studied the real truths behind Mormonism and thinks her beliefs are the only way to become a God while living eternally with family in the life hereafter.
Then the girl decided still not to date him after all. Patriarchal leadership is something that most women in the world valued until recently, but it is still a chief value with Mormons.