That slap was so deserved. I don't give Hanabi nearly as much shit as others seem to and it's an interesting perspective to have the main character be the one getting in the middle of a relationship as opposed to the usual 3rd wheel showing up later for drama, but damn she deserved it
This is quite fun for now, but it could end up dragging on and get old fairly quick if the only hook to the plot is this misunderstanding taking too long to resolve. Hopefully it doesn't fall to that and it's just the initial premise for our 2 dumb main characters.
Imagine the distinct possibility of the male protagonist not getting with the female protag because she really doesn't like him that way, nooo muh self insert. But sadly the author will take the bitch way out and have a shitty arc where she'll get jealous. Azusa becoming an AV actress would...