Jacqui accused Gilly Roach of sexually assaulting her in February, and although the personal trainer was later found not guilty at his trial, exactly what happened between the pair on the night in question remained unclear.
However, a special three-hander episode airing later this month will bring the plot to a conclusion, showing what happens when Jacqui and her husband Rhys (Andrew Moss) receive an unexpected visit from an emotional Gilly (Anthony Quinlan) at their flat.
Cooper told All About Soap: "You'll have to wait and see how the episode pans out. It's a special three-hander episode between Gilly, Rhys and Jacqui. I can't tell you what happens, but I can say that Gilly does eventually apologise."
The actress said that the episode "proves a point to many people out there" who thought Jacqui was lying.
"I got a lot of feedback that was pro-Jacqui, but an awful lot of people thought that Gilly hadn't done it," she explained. "It'll be interesting to see how the characters get to that point of apology in the episode."
Cooper added: "Jacqui actually experiences really mixed emotions in the episode. It's so well written and the audience definitely need this finale - they need to see the story reach some kind of conclusion. It's been such a delicate thing for us to tackle and a complex area to explore."
Hollyoaks airs the special Jacqui, Rhys and Gilly episode on Monday, November 21 at 6.30pm on Channel 4.
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