Another spoiler from the same user (rogue1996) in novel updates spoiler forum
Endings of ogFl, Ex fiancee, fl's dad
"OgFL: the last of her is when they return to their kingdom along with the CP before FL's wedding, she didn't want to attend FL's wedding, FL see them off. She said that she's been thinking about what FL said and she learned that FL is some kind of a possessor too, she despaired and realized she's not the main character of the world. FL parted her with another advice that everyone is the main character of their own life and it is not too late for her.
EX-Fiancee/OgML/CP: the last of him is when he wakes up after being possessed by the sword of disaster, FL visits him and he asked FL how is she, FL replied that she's obviously happy. Ex-fiancee said she's different from the FL he knew, FL replied the ex-fiancee never knew the real her.
FL's father: there's nothing much of him aside from the earlier chapter where he tried to get the FL back but miserably failed because of ML."

For my fellow readers who want spoiler of any revenge against the ex, his btch, and bitch father
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Nothing! No revenge at all lol so yup, dropping this