Hypnotized By Love by Sariah Wilson

Hypnotist Savannah Sinclair is known for helping clients overcome their deep-rooted issues, from anxiety to addiction. But her nontraditional approach also attracts plenty of skeptics—including her high school nemesis and rival, Mason Beckett, who just so happens to be the boy who broke her heart.
Mason’s life hasn’t gone according to plan. His latest novel was a flop, and the only gig he can land is writing a scathing exposé of his hometown hypnotist, Savannah. But in order to write an authentic article, he has to be a willing participant. Hypnosis is the last thing he expected: he’s shedding his negative nature and opening himself up to new experiences…and when a fire alarm interrupts their session, Mason walks out into the real world entranced and sporting a sunny disposition and a tendency to say yes.
Hypnotized Mason is fearless, revealing things he’s never told a soul, acting completely out of character, and leading Savannah on a frantic chase to keep him safe. He likes his new self. The problem is, so does Savannah. She can’t fall in love with a man who’s in a trance, but can she keep him still long enough to get him to snap out of it?