I cried because of this. I'm amazed on how this movie tackled the pros and cons of easily trusting people and believing your friends. I love how it protrays the reality, on how some of our friends will react differently if ever that we may put into this kind of situation. I can relate well with Gun-woo as we both feel the responsibility to make and get together our team/group of friends. As a person who only hope to hang out again with his/her friends and reminsice with them, I understand why he chose to believe them as they live in a 'so busy life' and yeah, they might just want to hang out with me after a long time. Afterall, there's nothing wrong about your old friend suddenly contacting you. I'm sad and I feel bad that the ending was just like that. I felt that there should be something to look forward and to be tell. I just wish that they gave us a more detailed ending but overall, I'm satisfied with this movie.