It was the perfect love story.
Half Moon and Jay's Wing were meant for each other, any cat could see that. Yes, they had their difficulties, but when their little tribe found their new home Half Moon thought everything would be wonderful.
Her dreams for a life together, children, were shattered when Jay's Wing announced he was leaving again. He told her she was destined to lead the tribe, and then leaves. Before he is out of earshot, they promised each other they would never forget each other.
Half Moon lived an unbelievably long life, but she never saw Jay's Wing again until her death. It was revealed to her that he was actually Jayfeather, the ThunderClan medicine cat, and a reincarnation of the original Jay's Wing, who died in the tunnels.
She has been deceased for many, many seasons now. The battle with the Dark Forest had come to pass moons ago. ThunderClan is thriving, and many kits have been born in the recent moons.
And Half Moon has watched from the heavens all this time