Later this week, fans in the UK will see Romeo succumb to temptation by falling for the charms of Ruby Buckton, played by Rebecca Breeds.
As Romeo decides to sleep with Ruby, he is unaware of the fact that Indi (Samara Weaving) had been planning for them to spend the night together.
Mitchell told the Daily Star: "Romeo is worried Indi is going to break up with him. She has been acting strange. When Ruby declares her love, Romeo is gobsmacked and they end up sleeping together.
"He regrets it almost immediately. Indi is the girl for him and when he finds out she was planning their own romantic night together, he feels terrible."
Mitchell and Breeds are an item in real life and confirmed their relationship last April.
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