"Time" in general is so nebulous. Your girlfriend sounds confused about what her emotions are really about and if in fact she really wants to be in a relationship. As painful as this feels for you, one of the best things you might do is simply give her space. I know: easier said than done. But right now, you need to think of your own self care. And allowing yourself to be too available and vulnerable to her when she is clearly creating a distance (at least for now) will only make it more difficult for you. If being in a relationship with you is what she ultimately wants, then she'll come around on her own. Right now, I would really encourage you to simply take care of you.
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