The highly successful Mandarin-speaking singer-songwriter Wang Leehom has issued a public apology to his ex-wife after a high-profile family row that has gripped the Chinese-speaking world. In a lengthy social media post on Friday, Lee Jinglei accused Wang of emotional abuse, lack of care for his family, infidelity and solicitation of sex workers. The accusation drew particular attention in part because of Wang’s reputation as a “high-quality idol” – a phrase applied to celebrities whose private conduct is deemed praiseworthy. Lee further accused Wang of transferring assets under his name,…