I'd remain eerily calm. Act like it's no big deal. I'll bring it up only once ,casually , so she will know I know but I won't bring it up again. Then I'd begin psychologically tormenting her, starting out with maintaining the relationship but remaining increasingly emotionally distant. I'd milk her emotions, making her my personal slave after a while. I'd own her mind and soul and make her wholly dependent on me; slowly draining her bank account. Over this time period, I'd become increasingly absent in her life and cheat with every female she knows...her mom, sister, best friends all without her knowing. Once she feels comfortable and I've convinced her we are getting married I will have her plan the wedding and I'll even buy her a fake ring. Then when she least expects it, a few months prior to getting married.....I'd randomly drop the bomb that I phucked her mom, all her friends, and had cheated with several women during the time. Then ghost forever.

Painal