An Immovable Solitude — S.A. McAuley

Erik Hash, owner of a shark diving company in South Africa, loses everything in one night--his business, his partner, and his desire to live. The victim of a violent hate crime, he leaves South Africa and takes a job aboard a private yacht to escape. When his partner reappears after three years, he wonders if there is something left for them to rebuild. But the ocean isn't ready to let go of him quite yet.