This is infuriating. The girl is upfront and honest about her feelings and thoughts, while the boy strings her along. Saying sweet things and giving her the impression he loves her. But when confronted, acts all uncertain. Sending mixed signals and completely taking advantage of the girl's feelings for him.
He is essentially treating her like some sort of convenience. He gets to be showered with love and affection like he is in a relationship, while not having to commit to her like in a real relationship.
Before someone tells me to not read if I dislike this, ill just let you know that I'm reading because the girl is great. Her upfront and essentially honest personality is refreshing in a sea of dysfunctional tsunderes. I'm also continuing to read in the hopes that some one will call mc out on his behavior. I doubt that will happen though.
P.S. if the situation were reversed, I'm willing to bet there would be much more of an uproar in the comments.