She had come begging for The Weaver to join her with the man she loved and had offered the rings, worn for decades by a happy couple, as payment. And in a moment of weakness, The Weaver had agreed.

I like how the magic she works requires a tribute that's in the same vein.

The Weaver had already begun to weave the man's end, it could not be changed, and now the woman would be fated to join him.

Ooh, well, she got what she wanted...