I can't believe I missed this when it released but damn, what a good chapter.
The major theme seems to be the lack of clear communication, and how it leads to the breakdown of their relationships. No one here knows the full picture, with MC not knowing what a prostitute exactly does, nor knowing that Yuri has a crush on him, and Yuri not knowing that he hasn't had sex with the prostitute, and that their relationship is purely one of companionship. They're talking past one another, and that barrier of communication between them, if they would just listen to one another and explain themselves, would lead to the situation not ending in such a (potentially) tragic way.
This isn't your usual manga romance painful misunderstanding, but intentionally focused on by the character's actions and their inability to listen to one another because of their own pre-determined conclusions. 10/10