Of Life Unexpected's four core characters, Lux (Britt Robertson) is the youngest, though she was forced to grow fast. As Life wrapped filming its season, TVGuide.com caught up with executive producer Liz Tigelaar to get the scoop on how Lux's years on her own will affect her ability to find her place in this family.Shiri Appleby ) giving Lux an ultimatum in last week's episode, she'll continue to do what she does best: leave. "When we get to Episode 7, things really come to a head for Lux and Cate, and Lux chooses Baze at that point as her parent. She wants to be with Baze and she's closer to him."There will come a point in the season where she leaves them both, wanting "to retreat back to her life with Bug," said Tigelaar.There's also trouble coming for Bug (Rafi Gavron) and Lux with the introduction of Jones (Austin Butler). "There is going to be a Bug-Lux-Jones triangle that starts to brew," she added. "Jones is a mini-Baze [Kristoffer Polaha] ... Baze likes Jones so much better than Bug, though we also see Baze' relationship with Bug develop. Bug's dad is in prison and he is envious of what Lux has. Baze becomes a father figure to Bug even though Baze really wants Lux to date Jones and he tries to make that happen as well."Amid her own relationship problems, "it's Ryan [Kerr Smith] who makes Lux see that nothing is more childlike than wanting your parents together if they're not," Tigelaar said. "In the beginning of the season, Lux would be way too smart and savvy to ever think Cate and Baze belong together, but over the course of the season, one of her arcs is that she does, and that will weigh on Cate and Baze."