Stalker by Brenda Hampton

After a brutal divorce, Abigail Wilson vowed to never love again, but when Brent Carson crosses her path, she simply can't resist his good-guy persona that exemplifies perfection. From A to Z, Brent appears to have it all. Abigail falls head over heels for him-until the unthinkable happens.
Brent's announcement, "I'm just not that into you," sends her on a downward spiral. She can't cope with ill treatment from another man, and now nothing would please her more than to see Brent making his way to the gates of hell. In a rush to get him there, Abigail takes on an unforgettable, head-shaking, and shocking role as . . . Mrs. Stalker.