Well, we live about 45 min away from each other, and we aren't technically gf and bf. All I know is that she shows a lot of affection for me and I like her too.
Well then, 1. Seal that deal and take her to the movies or ask her out or somethin'. And 2. If she's not TECHNICALLY your gf, then you shouldn't really be getting mad/jealous over a guy who has no idea that you like her.