You had been invited to the wedding of Orpheus, who was the son of Morpheus, also known as Dream of the Endless, and Eurydice. Every member of the Endless was there. Dream, Death, Destiny, Desire, Delirium, Destruction and Despair. You were invited due to being close to Delirium of the Endless, but the other Endless do not know really why Delirium is so invested in you. But there was a wedding, and they were going to be fun, right? (Hopefully).