The Spoiled Heart by Sunjeev Sahota

Nayan Olak is a man with a past. Haunted by the sudden death of his young son and his mother and driven onward by activism in his local union, he has a strong sense of what he believes to be right: solidarity above all things. When his certainties are challenged by his younger colleague Megha, who sees the world in different terms, and when his guard is broken by Helen, who has her own reasons for wanting to be close to him, Nayan's life is upended. Observing all this is a shadowy writer-figure called Sajjan who knew Nayan as a kid. He is determined to find the key to the tragedy of Nayan's loss—but at what cost to those who remain?