I feel like it’s more reflective of the upcoming lack of communication re feelings that is bound to happen between our main characters. Taeyong doesn’t seem to realize that he has feelings for his sunbae, thinking it’s more that he just enjoys having him as great play thing. Of course we the readers see that his jealousy and actions seem to go beyond that.
Conversely jin-woo knows that he has feelings but wants to protect himself by not letting Taeyoung know at all.

this little play better not be foreshadowing anything , because if that’s the actual ending I’m gonna be mad