Is their hope or is it done?

i liked this girl her name is sherry. i used to like her friend but thats because she's my friends ex so i went for the friend instead. My friend doesnt seem to mind though so after her friend got a bf i moved back to sherry. i asked her to prom and she said * i don't know him that well but im flattered but idk.. maybe not* something like that* seems to me like a soft way of saying no you ugly!. should i stop liking her or continue? im depressed so idk wtf to do