Okay first off you shouldn't obey our instructions or anything, sure we are here to help but we do not dictate your life. Just listen to yourself "should I call her up tomorrow..." "should I next her" it's perfectly understandable that you ask these questions but you must learn that this forum can't gurantee you the right decision you choose. What you must teach yourself is learn to take decisions yourself and not always rely on others with such minor problems.
I know I am coming a bit hard on you but that's what you have to learn. Please, before you post any further questions to this board regarding your relationships have a think first and if you really don't know what to do then ask here. It just saves you time and saves space on the boards.
Oh and I would suggest that to ring back and find out what does she want and then you can progress in asking her out.