What's the resolution of the gift of the magi

The resolution to "The Gift of the Magi" occurs when Jim tells his wife they should "put our Christmas gifts away and keep them a while. They're too nice to use now." He says this because he, like his wife, sold his most prized possession-he his watch, she her hair.

Both the guy and woman (i don't remember their names ... sry) sacrificed/sold their most valuable possession for a gift for their spouse.