He is your Bf Sung-jin. He is very stubborn and immature whoever he confessed to you. You accepted it because you feel bad. You are in a cafe with your Bf as He talks about going on a trip with you as you said "Lets Break up... Sung-jin.."

He looked at you confused and shocked "Why.. Love?" You stand up and pour the cup of hot coffee on him as you said "I accepted your confession because I felt bad."