Park BoGum asked the production team to edit the first episode of ”Cantabile”? ... Why did he cry during rehearsal?

Actor Park BoGum hosted his first show, "THE SEASONS - Park BoGum's Cantabile" (hereafter "Park BoGum's Cantabile") on KBS2TV.
On the 14th, singers Noh Young-sim, Sunwoo Jeong A, Jung Jun-il, and SE
VENTEEN's Hoshi and Woozi, actresses Kim You Jung, Jin Young (former B1A4), and actor Kwak Dong Yeon appeared and brightened up the stage.
Kim You Jung, Jin Young, and Kwak Dong Yeon, who co-starred with Park BoGum in the TV series "Moonlight Drawn by Clouds," will appear as guests.
Kim You Jung responded to the news that Park BoGum was chosen to host "Park BoGum's Cantabile" by saying, "I like people so much that I don't like them."
"It's a show that's filled with emotion, so I thought it was a good match," he said, expressing his support. "We talked to each other and said, 'Aren't you going to shed tears every week?'"
Kwak Dong Yeon drew attention by revealing that Park BoGum had burst into tears during rehearsal that day.
Kwak Dong Yeon said, "There's a rumor that during rehearsals, (Park Bo-Gum) cried a lot of tears, and the floor got so wet that it had to be redecorated."
"Why did you cry so much just now?" Park BoGum responded, "My dear friend took the time to come and see me, and when I saw his eyes, I felt so happy," and "I was so moved that I cried."
"I was sobbing. I wasn't crying. I want it edited out," he said, drawing laughter. Jin Young, who heard this, corrected him, saying, "I wasn't crying, I was sobbing," drawing laughter.
The TV series "Moonlight Drawn by Clouds" is a historical romance TV series that aired in South Korea in 2016, starring Park Bo-Gum, Kim You-Jung, Jin Young, Kwak Dong-Yeon, etc.
Kim You Jung, Jin Young, and Kwak Dong Yeon surprised Park BoGum by singing "POPCORN," impressing him once again.
Park BoGum was surprised by the unexpected surprise song and asked the three, "When did you prepare it?" Kwak Dong Yeon replied, "I just saw it during the rehearsal.
"I couldn't even sing out loud, so we locked ourselves in our rooms and prepared without even singing out loud. I wanted to let them hear a song with lyrics that contained the messages I wanted to convey," he confessed, warming everyone's hearts.