Tony Hirst, who plays Lesley's husband Paul, and Weatherfield regular Sue Cleaver (Eileen Grimshaw) shot scenes on location at a crematorium in Manchester for the upcoming storyline development, The Sun reports.
Over the past few months, Coronation Street viewers have seen Eileen grow close to fireman Paul, who has struggled under the pressure of his wife's early-onset Alzheimer's disease.
The plot recently came to a head as Paul agreed to move Lesley (Judy Holt) into a care home for a trial period, having finally conceded that he was finding it too difficult to look after her.
While Eileen and Paul have developed romantic feelings for each other, their relationship has sparked mixed feelings on the street due to the complicated situation.
As Paul will soon have to say a heartbreaking final farewell to his wife, viewers will be left to wonder whether he now has a long-term future with Eileen.
The Alzheimer's Society last year praised Coronation Street bosses for tackling the sensitive issue, which was researched by producers and cast throughout the filming process.
> Coronation Street fans want happiness for Paul, says Tony Hirst
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