He hugs him tightly for a few moments and gently shushes him as he cries, trying to comfort him. This is a different type of hurt, and this one is entirely his fault.

"You are." He argued. "And it's my fault. I kissed you because I was grateful for your help and I was selfish. But it meant a lot to me, so it's not an empty kiss. Because you always helped. I thought just once, and I will never do it again with you, and even then you didn't hate me, but continuing teasing me for my shameless. You don't have to be scared if I'm gone missing. Because meeting you is fate. I just think this place is cruel to bring us both together."

Very gently he relaxes his hold on him, "You belonged to him. But a part of me also belong to you, that always wanted to spend time with you, that always worry for you and love you, and never wanted to leave by your side. This part of me is yours and that kiss is yours."