It’s all perceptions. She wasn’t aware that ML was in relationship and eagerly travelled all the way leaving…
we will see that later dude liking someone and being there and finding way to approach she is only one who cared about and notice about that they are in fake relationship and i feel when main female lead fall in love with him and he will also in love mfl than there friendship between the girls will be in little tricky situation and its college teen drama soo its normal and she is also alone and she dont have any friends i dont feel she is bad but at some point she will do something thats all nobody is cunning as hell everyone have different approach or way to achieve something