DUMP HER! And quit apologizing for the "I didn't mean to.." crap about history searches. You knew all along what you were doing so save the sympathy outreach. This girl is playing you for a chump and you don't get the message for some reason. When a girlfriend strays to the internet, of all places, she is definately NOT THE ONE! Move on, quit wasting your relationship time, your money, and your feelings on someone so immature.