Responses
I found volume 2!!
https://jpmtl.com/books/54/10156/mobile
I think it's the prince. The others don't make much sense. But volume 1 still doesn't answer this question clearly XD
But we see the affection grow between the prince and our MC. I think it becomes clear in volume 2 but the translation is the worst of the worst, and my mind melts when i try to read it. ┐(´д`)┌
There's a novel if anyone is curious and it's completely translated (the novel is quite short) : https://www.novelupdates.com/series/the-villainess-cecilia-silvy-doesnt-want-to-die-so-she-decided-to-crossdress/?pg=3