The Winchesters series reveals more about the past of Sam and Dean's parents, including John's relationship with Betty before he met Mary. In season 1, episode 3, Betty returns an engagement ring that John gave her before going to fight in Vietnam. The proposal did not go as planned, and it's unclear how long they were dating. Betty was never seen in Supernatural, but the showrunner promises her story will be fleshed out, leaving viewers wondering if she'll survive the dangers surrounding Lawrence or become a casualty in the hunter's war against evil.
