Isabelle Mathers said yes to longtime partner Harri Musumeci after nearly a decade together. Some love stories unfold loudly. Others take their time, layering meaning until one moment pulls it all together. Isabelle Mathers’ engagement belongs firmly in the second category. The model and digital creator, known for her polished aesthetic and fitness-forward lifestyle content, announced her engagement to longtime partner Harri Musumeci with a series of understated but deeply personal posts