Little Deaths by Nenia Campbell

Rafael Nicastro has a love like poisoned wine—deeper and darker than anything Adonica Blake has ever known. Twenty years ago, she married his father. Ten years ago, she broke his heart. Now he’s the only one she can turn to when everything comes crashing down.
Donni used to be a B-list actress in the Hollywood horror scene but the winery-dappled California suburb she currently calls home has become a real live slasher movie, and her past body of work has become the killer’s inspiration.
But Rafe’s been waiting for her all this time, too. His obsession is the subject of his best-selling series of erotic novels, but he wants the real thing: her. And now that she’s in his grasp, he’ll do anything to possess her fully. Anything.

With love this twisted, even pleasure feels like a little death.