I HAVE A THEORY!!!!

So we all know the main theory of Su bin sabotaging mc is that she had a crush on mc and he didnt know or reicporcate her feelings so now she's being petty. But... what if.... she never actually stopped having a crush on mc?

Ok so what if her saying all this stuff about the person mc chose to go to paradise, not to get back at mc, but to make it look like their original pick is unloyal and untrustworthy. We know from her personality in high school she used to be shy and probably pretty nerdy. While by context clues we can assume mc was the opposite.

So what if after getting her heartbroken, made her stop seeing mc, which during that time she tried to reinvent herself to make mc jealous and into what she thought was mcs "type" and is now trying to sabotage all mcs romantic options so they have to choose her.