The Trick is to Keep Breathing by Janice Galloway

How can you heart keep beating when the man you love is dead, a man who you're not even permitted to grieve for because although he had left his wife it is she who claims his body and is named at the funeral. This is the story of the ironically named Joy 'lasting' this ordeal after her lover drowns, her complete breakdown in the face of the shattering of her world consigning her to a psychiatric ward, and the men and women who love her and despite her continue to reach her. Reveals the true horror of grief and the dangers of wrapping a life around a single person. Deeply moving, Galloway traces a narrative through a blasted emotional landscape with skill and feeling.