Want your girlfriend to really hate your guts? Just start hanging out and getting uncomfortably close with her attractive female friends. She'll love the way you respect her boundaries and take her feelings into consideration. Make sure to text them often and not show her the messages. Make movie plans and day-dates when she's busy. Nothing will show her your committed to your relationship like fishing for new partners within her pool of friends. This is a grade-A bridge burner, and you'll not only get out of your relationship, you'll also lose any mutual friends you had together. Win win?