Preview:Stefan severes his ties with Helena once and for all. Recap: Roy helped Melissa search the hospital for a missing Chloe. During their search, they ran into Mac, who wanted to question Melissa again regarding Sorel's murder. Roy tried to shield Melissa, but when Mac informed them that he knew Sorel had ordered Leo's death, Melissa broke down. She told Mac that she had legitimate reason for wanting Sorel dead, but insisted that she hadn't killed him. Roy deflected Mac's attention by talking about all the ways that he would have left Sorel to die, and Mac asked him where he had been the night Sorel was killed. Alexis was stunned when Jax revealed that he had found Kristina. She said that it was impossible because she had never spoken of Kristina with anyone — not even Stefan. Jax said that he had met Kristina when they both hired the same PI for different reasons. He grew close to her and eventually found out about her connection to Alexis. Though she initially didn't believe h