"What A Lunatic!" - Terraria Story

I hated Moon Lord my whole life, being the reason all the terrarians are dead and all, and I'm so close to killing it. But there's someone who worships the Lord, loves the Lord. The only way to get closer to the Lord is to kill the Lunatic Cultist. But Lunatic has more backstory than I thought. I should kill him, I should get payback, but I can't.