https://www.mangago.zone/read-manga/the_one_within_the_villainess/
it sounds kinda similar to this manga
It was korean but thanks for this I'll give it a read!
I FOUND IT IT'S CALLED "The Male Leads Were Stolen by the Extra"
I don't know how u didn't see that was the exact link I gave u but good for u boo
WAIT IT IS ONFG I'M SO SORRY. THE LINK WAS GRAY SO I THOUGHT YOU WERE REPLYING TO THE PERSON ABOVE SO I DIDN'T READ IT MY BAD
No worried lmaoo the link becomes gray when you've already read/clicked on the manhwa/manga once before
I need help. I remember reading this manhwa about the FL having four men close to her then one by one they begin to leave her because they liked her friend (??) More now. Few chapters later turns out the girl they replaced the FL with was just using some kind of spell so they would like her more and one by one the four guys were beginning to question why they left the FL in the first place after seeing FL with a new guy by her side.