Also remember that time when Jjong make a surprise visit to Ahyoungie hair/make up shop, when he interogate the make up artist about what Ahyoung said/feels to her about him?
Jjong really want to know about Ahyoung feeling/impression about him and to express it to him from the beginning.
He is the one who waited for all this time to Ahyoungie to open up and express whatever her feels about him. As we all said before Ahyoung is the one who harder to read than Jjong behind her bubbly ,cheerfull and bundle of sunshine present.