maybe he recognized just how sad his expression was, and how much the picture captured his loneliness and emptiness. i personally felt sad looking at it for some reason. :c
He just realized that he didnt want to leave or end that certain feeling of him towards the man in the theme of the photo which is...
"Remember u were having a sex with someone u loved, then eventually u will no longer see them"
...JOOWON (Flashed in his thought at that moment)
wait I can see it now, he kinda look sad like hollow in that pic ╥﹏╥
you make me sad for real omg （/TДT)/
I already read the raws so im certain. Yeah, indeed and i did feel you ╥﹏╥
Do you think haesoo cry because he thought of himself being so ethereal like I would cry too if I saw a gigantic ethereal photo of myself lmao