Though I get the allure of breaking up via text, honestly I would do it more for myself than for her (face to face that is). Even with past girlfriends, that I really did not care for them, I still went out and broke up face to face, because otherwise you do look like a coward in front of her and yourself in a little bit, even if at the moment it seems easier. Its not that hard. You can be fairly direct and quick with it. Hell most of my breakups were like that and I never felt uncomfortable later on, when we met again.
Vote the Mayor for Mayor!