This Won’t End Well by Camille Pagán

No new people: that’s Annie Mercer’s vow. It’s bad enough that her boss sabotaged her chemistry career and her best friend tried to cure her with crystals. But after her fiancé, Jon, asks for space while he’s gallivanting around Paris, Annie decides she needs space too – form everyone. Yet when Harper moves in next door, Annie can’t help but train a watchful eye on the glamorous but fragile woman. And if keeping Harper safer requires teaming up with Mo, a maddeningly optimistic amateur detective, who is she to mind her own business?… Read more.