Trust Me - The Me, #3

Clean contemporary romance with suspense elements. Damon Fields is about to be divorced because his soon to be ex-wife, Emmy Fields, can't remember if she cheated on him with his best friend or not. In fact, quite a lot of her life recently has been lost. Her eyes tear, and the rash on her skin keeps spreading, while her limbs shake. When Damon's best friend is kidnapped and Emmy is threatened, Damon takes action by moving Emmy back into their home.
They soon discover someone has forgotten to inform them they're not only in the game, they are the game. In order to survive they have to learn to trust each other all over again.