Kylie's relationship with David (Jack P Shepherd) has come under severe strain in recent weeks, and things are only set to get worse between the pair over the festive season.
Heartbroken and alone after another big argument, Kylie falls into the arms of another man and has a one-night stand. However, her guilt is overwhelming when she wakes up the next morning…
Digital Spy recently caught up with Paula Lane, who plays Kylie, to hear more about the upcoming Christmas storyline.
How do you feel about getting a big Christmas plot?
"It's really exciting. You can't really ask for a better gift than to be given a big storyline at Christmas. I've really enjoyed filming it and although I've felt quite tired with so many scenes to do, it's been an absolute pleasure. I can't wait to see it go out."
Will you be watching Corrie on Christmas Day then?
"Oh, I'll definitely be watching it. I always watch my episodes back as it's good to be able to evaluate your own work. I'll definitely be ready and eager for it to come on at 7.30pm on Christmas Day!"
Why do you think things have gone so wrong for Kylie and David?
"I just think it's a lack of communication, really. They're both trying to inject things into the marriage that the other person doesn't want. Kylie has got this new job at the Bistro and she's trying to better herself, whereas David is going down a very different path by wanting a baby and hoping to expand the family.
"At the moment it's seeming like they want different things and they're just not gelling. This all comes to a head around Christmas time."
When she's rowing with David, does Kylie see this as a huge crisis or just something that will blow over?
"Well, David seems to be going out and getting drunk after their rows, but that's the way they often react during arguments so I think Kylie expects that of him. She doesn't feel that it's out of character for David, because that's what they've always been like.
"Kylie isn't so happy that all of these arguments are happening at Christmas, as it doesn't set the best example for Max. So Kylie certainly knows that the marriage isn't perfect at this moment in time."
Do you think the viewers are going to pick a side in these rows between Kylie and David?
"I think they'll see it from both points of view. Kylie is showing great character by wanting to better herself and sticking to a job that she feels she's good at. But at the same time, it would be lovely for them to have a new addition to the family.
"I think the viewers will agree with Kylie's practical side - they haven't got enough room in the house, and they don't have the funds to support another addition to the family. I think the viewers might be more likely to be on Kylie's side. Well, I hope so anyway!"
We've heard that David humiliates Kylie at Nick's stag party in the Bistro…
"Yeah, it's horrible actually. Kylie is working at the Bistro that night and when Rob asks where the stripper is for the party, David points at Kylie. It's a really low point and I'm sure the viewers will get to see a lot of Kylie's pain when David brings up her past. She's very shocked that he could do that to her. She's very, very hurt."
Kylie then goes on to have a one-night stand at Christmas…
"She does. I wouldn't say that it's anything that's been plotted or that's been brewing for a long time, it's just something that happens in the heat of the moment."
Does Kylie regret it the next morning?
"Oh, hugely! Kylie is totally guilt-ridden and she's desperate to patch her marriage up and make it work. It's that morning when she realises that her marriage is worth fighting for and she does want David in her life, no matter what it costs her. But this storyline is going to have massive repercussions for her…"
Can Kylie and David patch things up?
"I think they can make it past these troubles. Their marriage has definitely got strong building blocks and the love they've got for each other is massive. I love working with Jack and I think our characters match up really well together - they bounce off each other. I think they can definitely get over this rocky patch."
Until now, Kylie and David were probably one of the only couples on the street who hadn't cheated on each other! Do you think the one-night stand is a shame in that sense?
"I won't lie, I was concerned when I first found out about the storyline because David has always been Kylie's rock. He's been her pillar of strength for a good 18 months now. The one-night stand is out of character for Kylie so at first I thought, 'Where am I going to go with this?'
"When I looked into the circumstances of the storyline and the producers talked me through it more, it did make absolute sense. After that, all of my worries were put to rest and I did look forward to filming it."
Does Kylie attend Nick and Leanne's wedding?
"Yes, Kylie is involved in the wedding at Christmas. Her and David are still both very frosty towards each other, but for the sake of Max, they're trying to make it as peaceful as possible. We're not saying whether the wedding goes ahead or not, but Kylie and David are definitely in attendance.
"The venue for the wedding was Knowsley Hall and it was stunning - absolutely gorgeous. It's nice to get out and about - we always joke that we're like kids on a school trip!
"Given that we were filming out on-location, it's great that we've been able to keep a lot of these storylines under wraps. The soaps carry their biggest storylines at Christmas, and I think the audience don't always want to know exactly what's going to happen. I'm surprised that we've been able to keep it as quiet as we have!"
Kylie always had great comedy in the salon, but are you pleased with her new job at the Bistro?
"Yeah, I am. I've been looking back at the episodes recently and I'm going to change a couple of things. I want to make her a bit more colourful in the Bistro, because she's been wearing black a lot recently. What was great in the salon was that I was able to experiment with her style quite a bit and put her in some wacky costumes. Even though she's smartened herself up a little bit, it'd be great to keep that sense of her character.
"I think the comedy aspect can follow through into the Bistro so I'm really chuffed about that, too. It's nice to have a change of scenery!"
A lot of viewers have picked up on hints that Kylie had quite a dark past. Would you like that to be explored more?
"Possibly - who knows what the writers could come up with? Maybe they could dig Kylie's dad up from the past, as there's not been much mention of him. I think that would be an interesting avenue to explore.
"Anytime Kylie has a breakdown, alarm bells ring because you never know what she's going to do. How she can react to certain situations is quite terrifying, especially for her family. It'd be great to explore that more."
You mentioned that the one-night stand will have big repercussions, so does that mean 2013 is looking like a busy year for Kylie?
"Definitely. I think it'll be my time to earn my stripes in the show. I feel like it's going to be my peak time here, really. We'll have to see how the audience react to that. I just want to do the best job I can and put 100% into it. I feel so committed to this show right now, and I really do want to give it everything."
> Read the latest 'Coronation Street' spoilers and news
Coronation Street airs an hour-long episode on Christmas Day at 7.30pm on ITV1.