Is Kyotarou regressing? Or, it only seems that way because he's quite flustered about dealing with a Yamada who's loved by the spotlight?
Also, I miss Kyo's onee-chan.
Ichikawa is starting to get on my nerves, trying to stay away from her all the time. You're her boyfriend, not her manager.
Honestly it feels like manga has been getting pretty stale in the last chapters. Nothing close to the level of the series except for confession.
It's not that he's flustered by it, he's trying to be mindful of her celebrity status in public because it could cause issues either with her agency, the production company doing the drama she's in, or any number of issues associated with the entertainment industry and women in it openly dating, especially in Japan.
Part of the problem is the fact that he could be targeted by crazed fans, as well, either girls or guys, who think he is unworthy or tainting Anna somehow. There's a variety of reasons that I assume are just taken as fact in Japan, especially in Otaku culture, but we may need spelling out.
Right now, the solution is elusive, but it probably will turn out to be something relatively simple and then they can be in an open relationship, much like Mai Sakurajima and Sakuta Azusagawa from the Rascal Does Not Dream series.