Coronation Street star Sally Carman, who plays Abi Franklin, spoke to This Morning's Phillip Schofield and Holly Willoughby on Wednesday's show.
Sally is engaged to Joe Duttine, who plays Tim Metcalfe, after they met on the set.
Holly probed Sally on whether the off-screen couple would have an affair on the soap, and Sally said there was no way.
She said Abi sees Tim's wife Sally as a "mother and best friend" and would never betray her.
Holly began: "I was wondering whether the guys at Corrie will be thinking, 'This could help with our COVID problems of teaming up two people and getting snogging on-screen'?
"Their characters would never, that would have to mess up Sally, that wouldn’t work?"
Sally replied: "Abi would never put foot wrong when it came to Sal,’ Sally replied.
"She’s like her mother, her sister, her daughter, her best friend all wrapped into one, there is just no way, she couldn't do that," she added.
"Well, never say never in soaps, that's for sure!" quipped Phillip.
Speaking about her lockdown engagement to Joe, Sally joked: "We had to find something to do to fill the days, and that was one of the things."
Abi is a recovering drug addict is involved in a feud with Debbie Webster over Abi's relationship with Debbie's sister Peter.
"Debbie gets the wrong end of the stick and it all falls to pieces," said Sally.
But Debbie speaks to Sally who lauds praise on to Abi, leading to Debbie making amends with Abi in upcoming scenes.
Speaking about Abi's turmoil between Kevin and Peter, Sally explained: "Abi likes a man with a bit of a spark, there is security with Kevin which shes never had.
"But they are cut from the same cloth, her and Peter.
"She has a soft spot for him."
* This Morning airs weekdays on ITV at 10am
