Geoff (played by Ian Bartholomew) has been seen controlling Yasmeen (Shelley King) on the ITV soap.
He has set about belittling Yasmeen and making her doubt herself through his manipulative comments.
The disturbing Coronation Street plot has seen Yasmeen become increasingly isolated as Geoff takes over her life.
But there’s more to the story to come as Shelley has said the scenes will become more “brutal”.
The actress appeared on This Morning today where she spoke about the storyline with hosts Ruth Langsford and Eamonn Holmes.
It came as she discussed how well she gets on with her co-star Ian Bartholomew.
She explained: “We have to trust each other because this story is going to get darker and darker and truthfully darker based on storylines the writers have heard and we have heard.
“What you will see will become brutal, not physically brutal but emotionally brutal – which is worse in a way.
“And it’s a long term [storyline] and that’s the good thing about it. It’ll go on for about a year in little bits.”
Shelley also spoke about how soaps had a “duty of care” to the viewing public.
“I think it’s very important. I think soaps and in particular Coronation Street historically has explored many controversial issues because we have a duty of care to the public. It’s in our homes.
“I think Ian [Bartholomew] and I have a great responsibility and Ian the producer, we have a responsibility to talk to people and to create a believable and understandable and truth-based storyline and that’s what we’re doing.”
“The good thing is we can’t be scared of being unpopular as actors or anything like that.
“Because we come into the home, Barty is the nicest man, we get on so well, we have the humour of a 14-year-old boy and we’ll not give it back.”
It was announced last month that the programme would be tackling the subject of coercive control.
Producer Iain Macleod said: “Abusive behaviour is not always physical – you can damage someone profoundly without laying a figure on them.
“Thousands of people feel trapped in relationships with someone who claims to love them but who is actually taking them apart piece by piece, isolating them and locking them in an invisible prison of fear and insecurity.
“Often the abusive behaviours accumulate and intensify over time so that you don’t realise it’s happening – it is an insidious type of brainwashing.
“I hope this storyline will help anyone going through similar experiences in the real world by highlighting that feeling undermined, belittled, intimidated or controlled by your partner is never okay.”
Coronation Street continues tomorrow at 7.30pm on ITV.