Brie Bella pushed Nikki Bella to have “really difficult” conversations with Artem Chigvintsev about life without each other.“Nicole, he needs to get [a will],” Brie, 36, told her twin in Us Weekly’s exclusive clip of Total Bellas’ Tuesday, December 1, episode. “Because you guys aren’t married, you really have to kind of sit down and think of all these different little parts.”The two-time mom added, “You guys also need to come up with a good coparenting plan in case of anything.