Joe Jonas and model Stormi Bree have officially ended their relationship after a short-lived romance of five months. The decision was reportedly made by Joe, 34, to prioritize his music career. This development came as a surprise to many, given the growing speculation surrounding their relationship. Their relationship first came into the limelight back in January, following their sighting together in Cabo San Lucas, Mexico. The rumors continued to escalate when Stormi posted a photo on Instagram in April that led to pregnancy speculation. However, Stormi shut down these rumors by responding wi…