can yall suggest more manga manhwa etc that the female lead become cold?

Lamia Orphe is Dead, Jeomuneun Hae, Silin Nun, Geurimja Hwangbi, Angnyeoreul Jugyeo Jwo, Caught by the Villain, The Lady and the Beast, Yeojuingongui Oppareul Jikineun Bangbeop, Your Throne, Pogguneur Girdeurigo Domachyeobeoryeossda, Villains Are Destined to Die
there is some of them~~

TYSM!!

If you're talking about Death is the Only Ending for the Villainess with the last title I can definitely agree with that one. Two of the others you mentioned the FL was already cold.