Coming from a girl herself- i wholeheartedly agree with what jhart said. One of my ex's chose not to speak to me much right after the breakup and i was devastated! He wasn't leading me on or anything, but once we started talking again a lot I was fine. Then he stopped talking to me again out of the blue and yet again I was devastated. Just try to be as normal of friends as you can with her, but, as said before, don't lead her on to think you guys will date again unless it is a possibility. That's my two cents, good luck!