Most Helpful Girl
That is a good reason to break up because she was simply rude and using you. It's good that you have enough self respect to choose for yourself.
Most Helpful Guy
Although that was a very hurtful and inappropriate thing to tell your boyfriend and means she is insecure, the truth is, a lot of insecure girls think that way (or a variant of it, e. g., the guy doesn't have a car) she just verbalized it.