"if I strip it all down I suppose it is rejection. I'm scared of not being important to him anymore. I'm scared of someone else being more important".
This is a feeling that I am trying to deal with at the moment - it is incredibly hard to know that someone who you would do anything for does not feel the same way anymore.
For what its worth Brit I think you are doing fantastically well, I am 5 months into my split now and am struggling to maintain any control on my emotions whatsoever!!!