This bullshit. The twins are pretty much trapping the MC. Get out of this relationship. This isn't healthy. You don't know which is which, they aren't honest with you. They're trash.
Oh I get it. She likes Sawa. But she just likes Sawa a lot. Since she never fell in love before, she doesn't know if her feelings towards Sawa is romantic or just an abundance of platonic love.
I think?