Steve makes a big mistake next week when his estranged wife Tracy falls seriously ill. Wanting to comfort Tracy (Kate Ford) as he fears she might die, the businessman lets her believe that he has feelings for her.
When Tracy later begins to recover and expects a reunion with Steve, he is exasperated as this could threaten his chances of getting back with Michelle Connor (Kym Marsh).
Gregson told Soaplife: "Michelle tells him to go and sort it with Tracy. He goes to the hospital, but Tracy immediately starts discussing where she and Steve might live and how happy they'll be.
"The thing about Steve is that he doesn't like confrontation, and he'll do anything for an easy life. He likes to just go through life, have a nice girlfriend and have a laugh with Lloyd.
"When crunch comes to crunch, he does think, 'Right, I need to sort this out', but he ends up just teetering around it. Instead of telling Tracy straight, he announces that he just wants to be on his own."
The actor added: "He's in this situation again where he's stuck between two women - which is when Steve is, at best, terrified. I don't think he's a bad guy, but I would tell him to man up and sort Tracy out big time and get out."
Coronation Street continues tonight (August 2) at 8.30pm on ITV1.
Watch a preview of Friday night's (August 3) Coronation Street double bill in the video below: