Betty Grof, once a human and later a wizard, was engaged to Simon Petrikov before he became the Ice King. His transformation resulted in a lonely and sorrowful existence, with Simon missing Betty. In the 'Simon Petrikov' episode, he voices his sadness and regret over his past and Betty's absence. However, a significant change occurs when GOLB digests them, causing Simon and Betty to return to their non-magical selves, with Simon regaining sanity alongside Betty.