Olivia Holzmacher may not be boyfriend Joe Burrow’s biggest fan after all. On Wednesday, the girlfriend of the Bengals rookie quarterback documented a sweet reunion between Burrow and pet dog Beau. “BIG day for Beau,” Holzmacher captioned her Instagram story as 23-year-old Burrow embraced his four-legged friend. “Excitement laps,” she continued. “He hasn’t seen Joe...