A lot of people have been saying there wasnt much development in this chapter. I have to disagree. I think there's a lot of "ground work" in this chapter. Nakamura-sensei is preparing for future developments. I think there are a lot of meaning and possibilities in this chapter. I'll go through my thinking.
1. Ren sees Kyouko and Sho together - The look on his face - I think we can all agree we can see kuon in it. He keeps it cool though. People were expecting him to do something about it but I think if he did it wouldnt be like Ren at all. I think he's been keeping everything in and soon he's just going to explode and that's going to be a really dark time.
2. Sho getting more dangerous - So far we've seen Sho being completely negligent towards kyouko, then he was a possessive, wanting to monopolize her heart. He comes back, goes away, comes back again, goes away. He only wants to keep kyouko thinking about him. But now he's starting to get dangerous and what it was worse than the man-handling for me was the mind games he started to play with kyouko, the manipulation of her thoughts and feelings. Sho knows the damage he's inflicted on kyouko and he's using that without second thought.
3. Kyouko realizing how she feels about Ren - ok, so I didn't understand how people didn't see this as a major development. The last three pages were all kyouko figuring out her feelings. "Because if I succumb even a little to my feelings, shoutarou, I am sure I'll become more of a fool than the time with you" Isnt that her saying she likes Ren even more than she did Shou? That the joy she feels even by the little things Ren do (praise her) are even bigger than when she was with Shou? I mean this took 191 chapters to realize so I think it is a major development - I was very excited when I read this. "I don't want to succumb no matter how much my heart aches". That is just showing the start of her suffering. I think from now on she will probably start keeping her feelings in. I wonder for how long she will be able to do this, specially after kuon comes out.
There will be some very interesting chapters coming soon, I can't wait.
One more thing - keep in mind that nakamura-sensei works are good because they are very well planned and very well thought out. Every thing she does has a meaning. :)