Alison told the Sun: “She’s a right cow – she’s getting worse and worse, which is quite funny to play actually.
“I can’t really believe that she’s so blatantly horrible to Maria.”
Carla has recently been cuddling up to brother-in-law Liam, though it seems Alison has found her a better match.
The star added: “I don’t think she wants to have feelings for Liam but she’s ended up falling for him.
“It’s part of her rebound thing about Paul, losing him and realising Liam’s the next-best thing. It’s all a bit weird.”
But she added: “I’d have Carla go out with Dev and she could say, ‘Come on love, we’re going on holiday, sell your shop!’
“He’d get rid of his last can of baked beans just to take her away and she would wind him round her little finger.
“It would be hilarious. He’d call her Carla-la-la Alahan and try to marry her. She would take him to the cleaners.”