Oh.My.God.  This is my story.  The one I haven't been able to write myself, but so vividly describes the pain I felt.  The only difference being that I don't do yoga, and my "Derek" waited until we'd been married 11 years and we had 2 children to finally realize I wasn't the one for him.  My Lynn and Sarah would be my sister and my best friend, without whom I don't know if I'd have made it through.  I don't cry easily, and I can't seem to stop right now.

He had been so important to me for so long I didn’t know how to be me without him. 

and

I had been completely blindsided and had had no chance at arguing my side. Who was he to decide my fate? What right does he have to destroy my life and saunter out of here leaving me with nothing but memories of our love? And memories of our relationship were all around me- pictures of the two of us and mementos of our relationship surrounded me. I couldn’t breath. Everywhere I looked was a pain filled reminder of what I had just lost. Or rather, not what I had lost, but of what had been cruelly ripped away from me.
 

Both of those resonate so fully with me.  This whole piece does really.  Thank you for this.  It's rather cathartic...I haven't been able to write about it myself yet, but reading this is almost as good.