Later this week, Lewis (Nigel Havers) discovers that Gail has resorted to desperate measures to test his loyalty to her mum Audrey (Sue Nicholls), recruiting Gloria Price to make romantic advances towards him.
Although Lewis passes the test by declining an offer to run away to Spain with Gloria (Sue Johnston), he is livid when he discovers that it was all part of a scheme to trap him.
Lewis humiliates Gloria for her part in the plan, and ends his relationship with Audrey as he fears that she doesn't trust him. However, he may wait longer to even the score with Gail.
Worth told itv.com: "Well, she was in cahoots with Gloria to set Lewis up, so when Lewis humiliates Gloria, it does cross Gail's mind that she could be next in the firing line.
"They do say revenge is a dish best served cold, so Lewis could be biding his time before setting Gail up for a fall. Lewis does tell Gloria that he has dealt with her, and will now turn his attentions to Gail."
Gail later tries to make amends with Lewis when she discovers that he has pawned his father's watch to help repay the money that he recently loaned from Audrey.
Worth continued: "When Gail returns Lewis's father's watch, she feels that they are equal and that she has made amends for her ever doubting him. Gail thinks that this gesture as well her apology should even the stakes between the pair, but has she grossly underestimated Lewis?"
Coronation Street airs Mondays, Wednesdays and Fridays on ITV1. Get the Inside Soap magazine on your iPhone or iPad