How to Reject My Ex-Husband's Obsession

I had to sacrifice my life to save my husband, who was also my first love. I thought I could finally let go of my lingering feelings of love only after facing death... Why am I waking up in someone else's body? And I've possessed a character in a book? But why is my husband from my past life here? What's more, he's the S-class esper, the sub-male lead who's obsessed with the female lead and eventually rebels against the male lead, the Crown Prince? And why has my guide ability reappeared? ...Ah, whatever. If we're separated by death, it's the same as a divorce, right? * "Did you think I wouldn't recognize my wife's guiding?" Why do you remember me? Why are you looking at me, not...