Sounds like someone that you shouldn't waste your time with then, no matter how pretty you think she is. Wouldn't be someone you'd end up happy with. Or, if you think it might help, explain to her what happened and that you are a person who stutters. Perhaps she'll appreciate your honesty and maybe she feels shitty for reacting the way that she did, but was too embarrassed after the fact to say anything to you about it. No matter how things turn out, though, her reaction and her attitude are for her to deal with and you have nothing to do with that.