Take It from Me by Jamie Beck

Wendy Moore hides her collection of pilfered bric-a-brac from everyone, including her husband. He thinks she licked her kleptomania in therapy more than a decade ago. Therapy did help, as did focusing her attention on motherhood. But now Wendy’s gardening and furniture-refinishing hobbies fill up only so much of the day, leaving the recent empty nester lonely and anxious—a combination likely to trigger her little problem. She needs a project, fast. Luckily, Harper Ross—a single, childless younger woman in desperate need of highlights—just moved in next door.
The only thing Harper wants to change is the writer’s block toppling her confidence and career. Then a muse comes knocking. Sensing fodder for a new antagonist, Harper plays along with Wendy’s “helpful” advice while keeping her career a secret so Wendy keeps talking. Sure, she’s torn about profiting off her neighbor’s goodwill—especially when Wendy’s matchmaking actually pans out—but Harper’s novel is practically writing itself.
Just as a real friendship begins to cement, their deceptions come to light, threatening Wendy’s and Harper’s futures and forcing them to reconcile who they are with who they want to be. Easier said than done.