Glasses Tachibana is hot! Glasses are really versatile.
Yeah, I think Tachibana really has a positive feeling for MC, but the MC just doesn't want to mess with a girl who has a fiancee. Understandable though. If she really wanted to pursue a true love as opposed to forced fiancee, it's on her to clear things up.
Btw, has the emotion test been mentioned before? What is it?