"Charlie and I have set some ground rules," Aylin says in the clip below. "No kissing, no cuddling, keep the flirting to a minimum."
Surprisingly, Charlie couldn't be happier about the new arrangement. "It means we've taken all this energy that we used to put into things like snuggling and thrown that into kicking each other's asses each week. And it's making both of us better," he says.