A brute.

Yu Dong didn't say anything in response to Qiao Sha's questions, what was she supposed to say? The reason her husbands were so close with one another was simple, they went through strifes and struggles together while the original Yu Dong was too incapable to take care of them. 

Unlike Zhou Ming and Jiang Fenhua who were raised in families that were willing to pamper them. The two didn't suffer through any troubles together and most likely they were the ones who were causing trouble for each other, so how could they get along with each other?

Her husbands on the other hand had to go through life and death situations while supporting each other, of course, they will treat each other well, because when Yu Dong couldn't save them, the three were next to each other to share their woes as for Fang Chi, he too had his own struggles and knew how to be grateful for everything he has now —— he was content with his current life and wasn't greedy enough to hope for more.