If it is possible to die of grief then why on earth can't someone be healed by happiness?

She needed to recover. His father had died in January; it was only the end of May. They needed to stick to the routine they'd established during the intervening months. in that way, their life would return to its original shape, like a spring stretched in bad times but contracting eventually into happiness. That the world could come permanently unsprung had never occurred to him.

Lament invoked love.Woe invoked wonder.Grief invoked grace.Cry invoked celebration.(Page 80)

Three years? That's a thousand tomorrows, ma'am.

What she did not know, and would never have believed, was that though her soul seemed to have been grown over with an impenetrable layer of mould, some delicate blades of grass, young and tender, were already pushing their way upwards, destined to take root and send out living shoots so effectively that her all-consuming grief would soon be lost and forgotten. The wound was healing from inside.

There are all kinds of ways for a relationship to be tested, even broken, some, irrevocably; it__ the endings we__e unprepared for.