Love Next Door by Grant C. Holland

Grief is a terrible monster, but almost every dark beast has a silver lining if you look hard enough. For Alec, it was Jensen.
Nearing 40, Alec is the product of a broken home and brother of a man who ended his life far too young. Despite all of the barricades life erected for him, Alec managed to construct a secure and stable life for himself owning a home in a gay-friendly city neighborhood. Unfortunately, his life is a lonely existence. Alec’s loneliness is magnified when cancer strikes his mother swiftly like the bite of a cobra and takes her away at astonishing speed.
In his late 20s, Jensen has lived next door to Alec for three years. In their only extended interaction, Alec dismissed the young man he considered careless, and it left Jensen bitter and uninterested in building bridges. When Jensen’s best friend, Les, spots Alec with his stricken mother, he suggests an act of sympathy.
A moment of caring leads to the thawing of the icy wall between the neighbors. Soon, the concern leads to desire and tenderness, but waves of grief and a sudden storm in Jensen’s life threaten to drown them both.