Help finding this manhwa T^T

So I remember there being a story I think it was like a historical manhwa where the fl dies and her and the ml were together/inlove or something so he's very heart broken but she recarnates into someone else (but is still in the same world just as someone else) and she meets the ml again but he's cold toward her. I think the plot was something like this it's been a long time.

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