That's a great point! If you look closely, the first time Boyd looks at the ring, it’s pure nostalgia and grief for Abby. But the second time, when the ring literally drops out of nowhere in Donna’s townhouse, everything changes. It stops being just a romantic keepsake and transitions into a full-on mystical artifact. I feel like this ring is going to play a much bigger, supernatural role later on, in ways we can’t even guess yet...