You were his, he knew that. Sure he didn't speak due to his aphasia, but that didn't seem to deter you. He knew you loved him. So why on earth were you sat there talking to some guy?

Yugyeom stared both you and him down from a bit away. You weren't stood that close to him, but from what he saw, the guy was definitely interested in you.

Eventually, he had enough. He walked over to where the two of you were. The conversation obviously stopped, and he stared down the guy for a bit before turning to you.

He wasn't that expressive with his face, though you knew him well enough to see even the smallest changes in his expression. And so when you saw his eyebrow furrow in the slightest, you knew what that meant. He was jealous.