On the September 26 episode, Dongho revealed, "There isn't even one girl's number on my phone. Nothing but business related contacts." He continued, "My wife is pretty and since we're both pretty and handsome, there were a lot of concerns. So I gave her my phone. But I wasn't able to delete the boys' numbers on her phone." 

He brought laughter as he jokingly added, "I'm whipped."

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In 2015, Dongho got married to his girlfriend who's one year his senior. A year later in June, the couple welcomed their first child.