Responses
http://www.mangago.zone/read-manga/joou_to_shitateya/raw/mi_chapter-6/pg-1
This is what happens in the next chapter it's in Japanese though also don't read more ahead of you don't want spoilers

So there were breathing sounds... then he called oumi but he didnt respond and line went blank... why? is he okay ... did he fainted in bathtub?