Pushback (Unabridged‪)‬

Dave, an investment counselor with PTSD, survives a blowout that kills his fiancee, Allison.  

A year later, Dave has found unexpected happiness with Cathy. At Dave's very-small-high-school reunion, Dave is stunned that he doesn't recognize anyone there. Cathy, who was previously victimized by a con man, breaks it off. Late that night, Dave gets a text: "How does it feel to be so quickly forgotten?" Apparently, someone close to Allison is angry that he has moved on so "soon."  

Dave's PTSD symptoms make him avoid conflict at almost any cost, so he hopes this will pass. It doesn't. The harassment escalates. And now, someone is trying to kill him.  

Dave's only choices are to flee or stay and fight. Has somebody picked on the wrong guy?  

"Stith...successfully expands his horizons with this unsettling Hitchcockian thriller.... Judicious use of humor provides some relief from the dark plot line. Fans of Daniel Palmer-esque intelligent suspense will be pleased." (Publishers Weekly)