That '70s Show - Season 5 Episode 5
Ramble On

In a romantic moment, Donna presents Eric with a ring, much like the promise ring that he gave her, and caused their break up. For Donna, the ring symbolizes their enduring love and committment; for Eric, it symbolizes ugliness. To protect Donnas feelings, he decides not to say anything, but the secret gains a life of its own. Kitty is determined not to let menopause affect her life, but has a hard time living up to her committment.