Speaking to What's On TV, the 32-year-old actor was quizzed about Carl's recent flirting with newcomer Eve Jenson (Suzanne Shaw), granddaughter of Edna Birch (Shirley Stelfox).
Lister said of his character's next move: "For once, Carl starts being sensible. He even takes on a long-distance driving job to put some distance between Eve and himself.
"The memory of the disaster that was his marriage to Lexi is still fresh in his mind and he doesn’t want to mess up again. Things may not be great with Chas, but he doesn’t want to lose her. He tells Eve it’s been fun, but he’s with Chas.
"[He is] not tempted enough [to cheat on Chas]. He still regards [her] as the love of his life and he’s decided to stay faithful to her - at least for now."
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