time only dulls the pain. Detaching and healing require work.
letting go of the good requires grieving it, like any loss.
How we heal ourselves: The Five Stages of Detachment
Acknowledgment- we begin by acknowledging and working with our feelings.
Self-Inquiry - we then probe the feelings - it's important to find a way to explore your feelings that allows you both to be present with them and to stand a little aside from them.
Processing - become aware of what has been useful in the journey you've just taken, regardless of how it all turned out.
Creative Action - start something new with real enthusiasm for the doing of it, rather than out of the need to prove something.
Freedom - the stage when thinking about your loss (or the thing you desire) doesn't interfere with your normal feelings of well-being.
probe the feelings.
what does the good mean to you? when you think about it, how does it make you feel? when you think about letting it go, what do you feel?
whats going through your mind (i know it involves "the good", but beyond that) when you get the urge to call her?