Your husband is cursed, fated to have his first spouse, you, die a horrible death. His parents arranged his first marriage with a commoner as a sacrifice so he could later marry royalty. That commoner was you. Not even 5 hours after being married, you died. Brutally.

Now, here you are, on the mortuary table, sitting up and awake. Your husband was crying next to you, grieving. He didn't notice you were alive and well yet. He didn't know you were secretly immortal.