Ashley is as dumb as hell. But she’s just smart enough to know that she’s as dumb as hell, which must be a torment for her: like looking in through a window at a really cool party. I have some sympathy for her: she uses self-deprecating humor to hide the fact that the self-knowledge of her dumbassery is tearing her apart inside.
Danielle is just pretending to be dumb for comedy value. She failed.
Don’t worry too much about her doctor at least Ashley will get a lot of attention from men… I mean who doesn’t want to dump their spunk reservoir on a girl who can barely spell her own name and laughs at jokes without ever understanding them?