The pair's wedding day will arrive on screen in next week's episodes, but Tanya has been tipped to struggle with unresolved feelings for ex-husband Max (Jake Wood) in the run-up to the ceremony after he turns up at her house and declares that he should be the one standing next to her at the church.
Speculation about Max and Tanya was fuelled last month when EastEnders' executive producer Bryan Kirkwood teased that Max's car crash on Tanya's big day could spark a new direction for the pair.
Speaking to Inside Soap about whether Tanya would ever reunite with Max, Joyner commented: "If Tanya did that, I'd despair of her - wouldn't you? But I do understand her. Some people are like faithful dogs, aren't they?
"And I love working with Jake Wood. Playing scenes with him is so easy because our characters have all this history together."
Joyner said that the lasting chemistry between Tanya and Max could mean that "a lot of people are going to get hurt", adding that her character is "ultimately a one-man woman, and if she can't have that man, she should be alone".
"Tanya shouldn't mess Greg about," she continued. "She needs to either live with Max, knowing she'll never be the only woman in his life, or stay on her own with her three kids.
"People stop me to ask if I think the marriage will be a disaster and I tell them, 'Greg sees her in her dress before the ceremony, she's late to the church, it rains and they live in Walford'. It's not looking good for Tanya, is it?"
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