Alan Halsall appeared to lash out at his ex-wife's new partner, Lewis Devine this weekend.
Hollyoaks star Lucy-Jo recently gave birth to her and Lewis' first child and Lewis shared the happy news on Instagram saying: "Our Sienna is delighted and is already making the best big sister, just like I knew she would!”
But Corrie star Alan seems to have been annoyed by what Lewis said, as he also took to social media and wrote a statement on his Instagram story.
He implied that Lucy-Jo had been unfaithful to him, which has never previously been brought up by either Lucy-Jo or Alan - reports Mirror Online.
He said: "You're welcome to keep the lying cheating one and call her your own! But not my daughter (Ok emoji, crying laughing emoji)"
The statement was then deleted by Alan the next day.
Lucy-Jo announced the birth of her son with a sweet Instagram story tribute, which said: "We are so in love with our baby boy!!!
"Our family is now complete. Love you @LewisDevine".
She split from Alan in 2016 but they rekindled their romance the same year, then finally split for good in 2018.
They had dated since 2004 after meeting on the Corrie set in 2002, where Alan played Tyronne Dobbs and Lucy-Jo played Katy Harris.
Alan is now dating his 25-year-old co-star Tisha Merry.
In August last year, Lucy-Jo announced she and Lewis were expecting their first child together.
Speaking previously about her and Alan bringing up Sienna she said: "Co-parenting has its challenges and it can be difficult with everyone's schedules but you make it work for the child involved.
"I'm happy Sienna has a good male and female role model on my side and with Alan and his girlfriend.
"She has more people to love her, and as long as Sienna's happy, that’s all that matters to me."
