Wait, thats it, i thought she was going to get a bigger reaction out of learning she was denser than him, when she couldnt tell that he was holding back because of her.
@KyrieMind Misuzu always feared that when Tomo would get a boyfriend she would spend less time with her. Nonetheless she helped her becoming more feminine and while she enjoyed doing girly things together she feels guilty because that might have hurt her chances (since she's basically perfect for Jun as she is). Now she found out that neither Tomo nor Jun, whom she never had a good relationship with, blames her for anything but they are actually concerned for her feelings. That's probably too much to bear even for devil queen Misuzu.