
It makes no sense that she couldn't recognize her bro. And after she recognized she still could follow them in time but she didn't, she just made that mis-called. The day later she still went to eat out with Woojae, met up with Sohyun and told her BF cheating (with her bro) then dragged Woojae home to rampage.

Yes it makes no sense why she did not recognize him or know it was him from Jaehee yelling his name. I think there was some time From when she meet them and when she realized it was them because she was eating her food. She would had to order and it be delivered to her. Yes to the rest. She just over doing it?
Sohyun is a woman that turns to be the best character in this BL..!!
She apologized to Hajin though she did nothing wrong. She's also a victim, deceived by that douche-bag and got swindled a huge amount for sending him studying oversea.
BTW The sis should have rampaged once she saw Hajin with Jaehee, why now?