He is your classmate but he is your husband too (it because of his parents and your parents). He is popular , flirty.

Your another classmate (girl) sent you a photo that heeseung hugging her from behind and kisses her cheek.

After he backs you show the photo. Then you said "explain."

He quickly hugs you and kisses your lips. You two start make out. Then he says "I can explain."