No Contact. Means no email, text, phone call, Facebook, Myspace or any other communication with your ex. It's really the only way to truly heal and move on.
Also you're setting yourself up for an emotional beating if you continue to wait on her. You should be letting her go now. If she calls you, she is not going to tell you anything you want to hear.
You're better off proceeding forward believing she is NOT calling and NOT coming back.
It's good that you are keeping yourself busy, that's a good start. You're going to need it to when your false hope gets shattered when you either don't hear from her or find out that she has moved on from you.
You sound just like me, when my ex gave me the "I need a break" line. She just went to Florida for an internship and I would call her everyday to talk and whatever. In August she told me "I need a break from us. I don't want to make my final decision over the phone. I want to wait till I get back in November before I make my final choice."
Well I agreed, and talked to her about once a week for the next two months with the false notion that she was going to come running back to my arms. BOY WAS I WRONG!
In October, I found out through her that she was talking with another guy and ended up sleep with him after we went on a break. I was devastated and wish I would have just looked at the situation for what it was and started moving on at the start. Now I am a couple months behind in the healing process because I waited.
It sounds like you're doing the same thing I did by setting yourself up with false hope and waiting for the impending devastation. You should be proactive in healing yourself, not reactive.

