My advice would be, to try and show her you have your own life too. I mean try not to be dramatic when you have contact with her. When you sit and worry about it, and then they call and all that built up angst comes out in your tone, and your overall demeanor. A joke someone told me that helped me was: think about someone you know who is really good at worrying, a friend or family, then call them and tell them what your worrying about and let them do the worrying for you.
I hope this helps, it's hard but either way we have to be happy
