I didn't realize until after looking at the raws (here's the link https://comic.pixiv.net/viewer/stories/52579), but the very last panel of page 11 shows Uruuno turning away from Kazami, and pages 12-13 (which are originally one big picture in the raws) show her facing away from Kazami. It's almost like Uruuno is lying and therefore trying to hide her face.
Also, remember that dream Uruuno had of almost kissing Kazami back in chapter 2.1? Well, putting these two instances together made me think that maybe Uruuno is trying to keep Kazami at a distance to prevent anything like what happened in her dream from coming true, hence her saying she had someone she was dating. Not necessarily because she doesn't have any feelings for Kazami, but because two girls together is still an unfamiliar or odd concept to her.
But this is all just my theory. You never know.
last edited at Feb 26, 2019 2:49AM