[Joiwu01]

I have met a girl in Japan about 1 and half month ago. Since i got back i sent/received about 3 mails every day and skyped several times.
Now yesterday i told her that i liked her, to which she reacted pretty surprised but also happy. Then i asked her if she wanted to go out with me in December when i'm going to Japan again. To that she said 'Dou shiyou' a couple of times. I told her to think about it and after that we skyped about an hour more, though it was a bit awkward..

That was more than a day ago, and since then i haven't heard from her even though i normally get daily emails. I'm not sure what the dou shiyou means.. Could it be a rejection? Or is she actually thinking it over? Should i wait for her to mail me? Should i mail her and ask her about it, or mail her casually and not talk about it?

Anyone with advice? ^^