Not Heaven Without Him

Cassie Holm died at the age of 26. The reason for her death isn't documented quite right though; she didn't die Cassie Holm. When she finds herself a happy occupant of a room in Heaven, she discovers that there's a little more to the walls of bliss that are God's domain. Lies, Horrors, Cruelty, and somethings that a deemably worse than eternal damnation. Why does she have nightmares every time she falls asleep? Why do these nightmares ring a bell in her head telling her that maybe she's forgotten something? Why does she get migranes like a human when she tries to remember what connection she has to the name Alexis and the significance of beds in her heart?
Maybe it's because she's dead in Heaven with her boyfriend in Hell.