In the recent Taiwan PSH FM, she was asked what message she wants to tell CES..Here is the translation:
Hello ES. There’s only a few days to university exam, you know that this is an important exam, so please work hard if you do not want to get slapped by your mom. You and KT must still be very much in love, please remember not to let go of the hand which you have held together tightly, no matter what; even when you meet with difficulties, just like KT said ‘go forward’. I am so glad to have met you ES, I felt very blessed and I thank you as well. Please remember to invite me if you and KT get married.” - Park Shin Hye (Story of Angel in Taiwan)
CR: @Mosquito for her translation
I feel like she is talking about herself and her KT!!!