Responses
http://www.mangago.zone/read-manga/oko_sama_star/mf/tr_chapter-9/pg-15/
http://www.mangago.zone/read-manga/oko_sama_star/mf/tr_chapter-9/pg-24/
Its best to re-read the manga from chap8 or 9, once you know whats going on its easier to keep track of things

Ah, I'm copy-pasting my explanation from another response, since a lot of people seem confused!!
From chapter 9 to 11:
Honda and Kaido were caught on camera by a paparazzi. An article about how Kaido is dating a man was published, and he started getting harassed by his co-workers. In attempt to not worry Honda, he hid this info from him, but that backfired and Honda started blaming himself due to miscommunication.
Honda broke-up with him thinking that he's the reason why Kaidou is having so many issues pursuing his dream. He moves into Kawasaki's apartment for the time being.
In the lastest chap, Honda finally got a job and in the excitement he forgot he wasn't staying in his own shared apartment anymore. That's why he was calling out for Kaido.
[Kawasaki and Fujita are their mutual highschool friends, and the main characters of the spin off story.]
hope this helps ;;