Lister explained the couple's relationship saying: "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". Chas plans to expose Carl's affair on their wedding day, Lister explained that Chas begins "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". He added that Carl and Chas have always wanted to marry and begin a family but they have never been able to "get their act together and decide to do it". Lister told Ryan Love of Digital Spy that Chas begins to doubt whether she will go through with exposing Carl's affair after she sees how serious Carl is about their relationship and that he has ended his affair with Eve. Lister said that if Chas goes through with her plan then Carl will be in disbelief 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. [...] 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". Lister added that Carl could forgive Chas if she was honest about her plot before the wedding. Lister went on to say that Carl has "always seen Chas as the answer to all of his problems. She was like the one who he could get his life sorted with".