It would make sense with Valentine's Day! Rose was a Hand Cannon that was corrupted by the Darkness and eventually became Thorn.
Obviously, Rose wouldn't just appear. There would be a quest to purify Thorn by using it in Crimson Doubles or something.
Anyone agree?
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Maybe they should have called the first curse rose, would make since because of how much it has in common with last word and how much lore includes last word and thorn.