Carrie is plain, reserved and keeps to herself. Not because that's her personality, but rather to keep herself from being the center of attention. See, Carrie doesn't date. At all. She's also reached a point in her life where she's tired of having to explain why, which is the reason for her introverted behavior. Carrie is also the opposite of the type of girl Joe usually goes after. Not that Joe has to work for the attention of a woman, but normally he wouldn't even give someone like Carrie a second glance. Joe is laid back, out-going and makes friends everywhere he goes, so he knows right away that he won't have anything in common with the timid and mousy looking Carrie. Except their mutual friend, Stacy, that is. Only Joe doesn't exactly make the best first impression on Carrie, which results in him having to work harder than normal to even form some kind of friendship with her. Joe starts out trying to win Carrie's friendship for the sake of his friendship with Stacy, but the more he gets to know Carrie, the more he realizes just how wrong he was about her. A friendship emerges and feelings that are more than friendly start to threaten the easy relationship Joe and Carrie fall into, until one day the metaphorical curtain over Joe's eyes gets pulled back and he sees Carrie in an entirely different light.
