The Weatherfield couple have recently hit a rocky patch due to Tina's plans to have a baby for Gary Windass and Izzy Armstrong. Although Tommy (Chris Fountain) vowed to stand by Tina in last night's (September 17) episodes, their romance will continue to be tested in the coming weeks.
Keegan told TV Times that she is keen for the pair to come through the storyline with their partnership in tact.
She explained: "Every time I go out, people say to me, 'Where's Tommy?' It's the same for Chris. They've really taken to them as a couple. I think they work well together, too. What's nice is the fact that they are best mates as well as boyfriend and girlfriend.
"I think the surrogacy could pull them apart, but I would like to see them stay together. They are such a good match."
Keegan also confessed that she is looking forward to having an on-screen baby bump if Tina's surrogacy idea goes ahead as planned.
"I'm really excited about it," she explained. "When Natalie Gumede, who plays Kirsty, wore pregnancy padding, I used to stroke it every day and treated her like a real pregnant lady. I bet I'll start eating more and getting out of my chair really slowly without bending my knees."
Coronation Street continues on Wednesday (September 19) at 7.30pm on ITV1. Get the Inside Soap magazine on your iPhone or iPad