Ok At first I just had a hunch that Yoonsung already knew about Hakyung's secret and his gender but now after reading the latest chapter I am fully convinced. He knew Hakyung was only pretending to be who he was and he wanted to know everything about the real Hakyung that was why he was assuring Hakyung on the latest chapter saying he will wait for him to reveal himself...Yoonsung was basically giving Hakyung a hint but than the accident happens and the dementia part comes...
Ok
At first I just had a hunch that Yoonsung already knew about Hakyung's secret and his gender but now after reading the latest chapter I am fully convinced.
He knew Hakyung was only pretending to be who he was and he wanted to know everything about the real Hakyung that was why he was assuring Hakyung on the latest chapter saying he will wait for him to reveal himself...Yoonsung was basically giving Hakyung a hint but than the accident happens and the dementia part comes...