After a shock spat with Gemma Winter (played by Dolly-Rose Campbell) in the cafe, the ITV soap offered some information about the mysterious character.
Shona (Julia Goulding) was seen visiting Kylie Platt's grave (Paula Lane) at night, despite never admitting she knew her while previously speaking to her widower David Platt (Jack P. Shephard).
Many at home questioned whether she was the deceased's long-lost sister or cousin, after she looked emotional in front of her grave stone.
Two people tweeted: "Shona knows Kylie. Sister, cousin? #Corrie," and: "I think Shona is somehow related to Kylie #Corrie."
Coronation Street: Shona Ramsey visited Kylie Platt's grave tonight
Coronation Street: Shona Ramsey looked emotional as she stood in front of Kylie Platt's grave stone
Coronation Street's most dramatic moments
Thu, January 12, 2017
Coronation Street's most dramatic moments.
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Coronation Street's Shona knows Kylie. Sister, cousin?
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Comments flooded into the micro-blogging site after the short, but sombre clip aired, with another person asking: "I'm confused. How does Shona know Kylie? #corrie."
"Shona at Kyle's grave, well… I wanna know what's go no on with her #Corrie, I knew there was more to her character @itvcorrie intrigued,"(sic) one tweet stated.
Earlier in the instalment, Kylie's pal Gemma had been adamant that she recognised Shona – who previously stole David's wallet – from dodgy pub The Dog and Gun.
Coronation Street: It was not known that Shona Ramsey knew Kylie Platt
Coronation Street: Kylie Platt died last summer in her husband's arms
She had reacted angrily after being linked to the establishment and later told her that they had met at a mutual friend's party – which Gemma accepted.
Kylie was murdered last summer by yob Clayton Hibbs outside the takeaway and died in her husband's arms in the middle of the cobbles.
Coronation Street continues Monday at 7.30pm on ITV.