Random Acts of Heroic Love by Danny Scheinmann
If you feel men are incapable of deep romantic love then this book will change your mind.
In 1992 Leo is separated from Eleni by death. In 1914 Moritz is separated from Lotte by war. Grief-stricken Leo searches for Eleni’s presence in ants and other insects, whilst delving into quantum physics for explanations of love. Moritz escapes from a prisoner of war camp and walks home across Siberia, writing letters to Lotte that can never be posted.
This novel interweaves the separate stories of the two men, revealing their connection, across the years, only at the end of the book.