How do things continue to develop between now and the big day?
"Well Carl is obviously absolutely over the moon since Chas proposed. Although he had been messing around with Eve, I don't think he was ever really going to leave Chas for her. He was just enjoying the whole thrill of the chase and the affair as it played out. Then Chas obviously came with this bombshell asking him to marry her and saying that she was pregnant. In a sense, I think he thought, 'Oh, that's fantastic'. It was a great excuse to get out of the affair with Eve because it was all getting a little bit complicated. She was becoming too much hard work. In a sense, he has got everything he wanted really and is quite a lucky boy. Little does he know..."
Do you think Chas comes to fully regret her decision to seek revenge?
"Well Carl was obviously playing away but there's something about those two - they are an absolute nightmare when they are together because they either fall out or one of them does something that jeopardises the relationship. But they always keep coming together, back to one another. They are destined to be together. As she has been planning the wedding, she is losing confidence in the whole revenge plan because she realises how much she would actually love to marry him and would love to have a family with him. They have always wanted that but have never been able to get their act together and decide to do it, so she realises that this whole fantasy future is created before her eyes and sees how much Carl is absolutely all guns blazing for it. She starts to realise, 'I would really love that, but can I get past what he has done to be able to make it a reality?'"
"It's a few small moments really, as she actually sees how Carl is so excited about the baby and can't wait to settle down with him. She starts to see how he completely brushed Eve aside and how it's totally over. She sees Eve in tears and it's clear that Carl has called it off between them. Then there was dinner at the Dingles' where Carl stood up and said, 'I know I've been an idiot and that I haven't always been the best boyfriend in the world, but from this point on that's going to change. He promises to be the best dad and husband that he can be. At that point she really started to think, 'Can I go through with this?'"
Has he won the Dingles over?
"I don't think they are ever going to particularly like him and I don't think he feels like the Dingles are ever going to be like family to him, but it's Chas's family and he is going to make an effort. I don't think he can abide Charity or Cain or Zak... but they are part of Chas's package so he is like, 'Well they come with you so...' Sometimes you have to make an effort with them!"
If Chas goes ahead with the plot, how will it affect Carl?
"I think if she does go through with it and he doesn't ever suspect that anything is going on, I think he will be absolutely sidelined by it. He just won't ever believe that Chas could do something like this - that she could pretend that she was pregnant, that she could do all this stuff basically just to bleed him dry of all the money. He's been with all the psycho bitches like Chloe and all those kinds of women in the past. The one thing about Chas is that she has always been nuts, but she has always been honest and kind of had some morality to her. For her to take him to the cleaners, I think he would be so gutted and completely ashamed for it to be revealed like that in front of everybody."
Do you think they could make it work if Chas was honest with Carl about her plot before the ceremony - and explained that she regrets it?
"I think that he is so absolutely up for the whole wedding and for the whole baby that if he came clean and explained what was going on and tried to make good, that I think he would forgive her. Basically, he has cheated on her and deserves what's coming to him. I think he'd be shocked and gutted but he would be able to get over it and say, 'What the hell, let's just get married anyway, because you're the one I want'."
Is Carl happy with the idea of settling down, having a wife and baby?
"He is genuinely happy! He's always seen Chas as the answer to all of his problems. She was like the one who he could get his life sorted with. He killed his dad and he was racked with guilt over that, then his brother died and his life has been in absolute turmoil and he is full of shame and guilt - but Chas has always been the shining light in the midst of that. When they finally got back together and moved in together, I think he saw that as his chance to get his life right. When she said that she wanted to marry him and have his baby, that was even better. This is his chance to do it right - except for the fact he's been having an affair on the side!"
Is Eve going to give up on Carl?
"I think Eve has a hand to play yet. As it gets nearer to the day, she is convinced that Carl loves her and is too chicken to say that he doesn't. So you start to think, is she going to blow the whistle on the whole thing? Is she going to tell Chas what has been going on? She is not just going to go down quietly…"
> Click here to read more from Tom Lister in Soap Scoop