I swear I've seen another manga with the same story I just don't remember what it was

You're right. There is one about a villainess who tries to be a bad guy but she's too kind and pure for this world.

I found it. It called: Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku

Translation: Observation Log of My Fiancée Who Calls Herself a Villainess

There is also: I’ve Become a Rogue Lord in a World Where Only I Can Level Up

You're welcome.

There are at least 2 more but I can't remember their names.

Dayummm thanks my mind of overthinking is finally let to rest LOL