I think Eunso answered to Eunhyuk t

I think Eunso answered to Eunhyuk the first time because she felt bad for not answering him after he called twice. And then Donghae called her and she didn't want to hurt Eunhyuk so she was hesitant. Donghae called a second time and since was who she wanted, she answered. At that time, I think Eunhyuk was about to cry. Moral of the story: Love hurts.

Hasil (Bahasa Indonesia) 2:

Saya pikir Eunso menjawab Eunhyuk pertama kalinya karena ia merasa buruk untuk tidak menjawab setelah dia disebut dua kali. Dan kemudian Donghae meneleponnya dan dia tidak ingin menyakiti Eunhyuk sehingga dia ragu-ragu. Donghae disebut kedua kalinya dan karena itu yang dia inginkan, dia menjawab. Pada waktu itu, saya pikir Eunhyuk hendak menangis. Moral dari cerita: Cinta menyakitkan.