What do you do when you lose a soul mate?

Not necessarily the romantic type but the judgement-free, kindred spirit.

The one whose soul seemed to understand the fabric mine was made from. That whatever hand knit the fabric of your existence and whichever thread was used to weave your destiny in the world, perhaps brushed against the thread used to stitch mine together.  

I thought that I was yours,
And you mine.

Our threads so perfectly entangled,
That only the sharpest of instruments could separate. And even if we had been careful or courteous, surely it would have nicked our hearts.

Perhaps there exists no thread of life or fate strong enough to stitch us back together.

What would you have me do then?
Which groups exists to support those like us? Are songs written for those like us?

We were not broken up with or cheated on even though it has left us feeling broken and cheated.

What reparations should I make when something has been irreversibly damaged? Who will be left to clean up these pieces?

Who would write a tragedy like this?