Project Echo 31 by E.D. Johnson

In this romantic sci-fi adventure, Luke must make a choice: Stop the marriage that ruins his life in two decades or give in to temptation and take the good times in between. Can he learn to live with the means justifying the end?

Publisher Description

Luke Summers is emotionally broken. His twenty-year marriage has just come to a bitter, heartbreaking end and he is struggling to find the will to put the pieces of his life back together with such a large section missing. Every problem he has known for years seems to be rooted in those damned vows of matrimony. If only there was a way to undo what was done so long ago…

His friend is a physicist with a contract to change the world. He confides in Luke something as absurd as it is wondrous. “We have almost perfected the art of time-travel.”

Seeing his chance to rid himself of the slow cancer that was his ruined marriage, Luke convinces his friend to show him the machine. His friend explains that time-travel only applies to the consciousness, and that it is far from an exact science. Midway through the explanation of the rules, Luke seizes his opening and starts the machine while his friend’s back is turned. He concentrates on the day he met Stephanie, his ex-wife. He sees a light at the end of this dark tunnel of pain and then…