Complex sentence: On September 12,2007 when Yang Goon announced that Lexy left YG Entertainment, as signing with the agency didn't happen, revealed that because of that, he felt like giving away his younger sister for marriage.
Split into simpler sentences: On September 12,2007 Yang Goon announced that Lexy left YG Entertainment. Yang revealed that because of that, he felt like giving away his younger sister for marriage.