I really expected them actually get together this chapter. The mangaka doesn't drag on his relationships that long normally.
But what was that T minus 5?
Apparently, a petunia symbolizes anger, monkshood symbolizes hatred, and a black rose symbolizes death. I think some arrangement of the three could very well be considered a "fuck you" arrangement.
TFW when this chapter reminds you of that skinny girl with big tits that wore sweaters like that who liked you but you were too lazy to give her a shot.
@ksen I think Ootani's mom made it pretty clear, although it has been clear ever since the time their friends set them up for a movie date: it isn't really as much denseness, rather Ootani is purposefully avoiding Shuri's advances. And she seems pretty close to going feral by now