The actor told PA that he is unsure of what the future holds for the pair following their recent decision to start dating again.
Praising the plot development, Thomas commented: "She was one of the first girls he ever went out with. I think he's just done a big round circle and come back. It's been great, I've enjoyed working on it.
"They've got all the right qualities to last as a couple but you just don't know. Couples don't seem to last too long on Corrie and if they do, there's always things that get in the way of relationships in soaps, so we'll wait and see."
The 28-year-old, who is up for 'Sexiest Male' at this year's Inside Soap Awards, added that he is unfazed about stripping off on screen.
He explained: "I don't get nervous before those scenes any more - the actors are all quite comfortable with each other and we know each other quite well, so it's not too bad."
Coronation Street continues tonight (August 2) at 8.30pm on ITV1.
Watch a preview of Friday night's Coronation Street double bill in the video below: