I think the best thing to do in this situation is give her the space she needs and has asked for. Don't go texting her every 5 minutes, don't call her, etc. It will be hard as nails but you have to do it.
Start preparing yourself mentally for the fact that you might not get back together. As it is a possible outcome, start seeing friends who aren't too associated with her and go out with the lads, keep yourself busy.
Two possible outcomes will arise from this:
1) She realises in a few weeks/months that she does miss you like crazy and she will approach you, at which point in time you make the decision to get back or not.
2) You go your seperate ways, but at least you won't be strung out for the few weeks/months whilst she makes up her mind.
I am aware that women in this situation before have been known to use their Ex as an "emotional crutch". Essentially use you if she feels lonely once in a while, maybe for sex, for attention, whatever - whilst all the while not interested in continuing a serious relationship. Do not allow this to happen. Being strung along is the worst thing that can happen to you.
Have a serious chat with her, try and be as truthful as possible. Then do as she asks and start trying to move on. It won't be easy but it will be the best thing for you in the long run.
Good luck mate.