SEE ALSO: Actor Go Kyung Pyo's surprising weight gain becomes a hot topic

Go Kyung Pyo, in the middle of filming, suddenly burst into tears. The actor apologized, "I feel so sorry. 'Youth Over Flowers' is a place where people who are loved by other people go on and I don't think I qualify. What I said back then is so embarrassing," referring to his past social media rants that have caused big controversies. 

It's all done with now, and it seems he has learned his lesson, so Go Kyung Pyo need not feel so woeful any more.