Ferne McCann’s ex-partner Arthur Collins was jailed for 20 years in December, after throwing acid at nightclub attendees in April.
Some of the victims were given life-changing injuries, and Ferne vowed to raise their daughter alone.
Arthur has just had a further eight months added to his sentence, for using a smuggled mobile phone while in prison.
He’d hidden the phone – as well as two SIM cards and two memory sticks – inside a crutch when he was on remand in September.
And he admitted on Boxing Day to hiding the phones in prison to talk to Ferne.
Arthur, who appeared at Woolwich Crown Court by video link from the high-security Belmarsh Prison, reportedly showed no emotion at his extra sentence.
At the sentencing, Judge Nicholas Heathcote Williams said: “The presence of a mobile phone or component part such as a Sim card has many implications, not only for the prison establishment, but also the wider environment.
“It provides a prisoner or prisoners with an opportunity to communicate they would otherwise not have.”
Arthur had spent several months on crutches after breaking both ankles jumping from a window while trying to evade arrest after his crime in April.
He injured 22 people by throwing acid across a nightclub in east London.
Ferne gave birth to daughter Sunday in November, just weeks before Arthur was found guilty of the attack.
In her ITVBE documentary aired before Christmas, she talked about the turmoil of her pregnancy.
She said: “You find out you are pregnant, you are so excited but then your whole life is turned upside down. It was absolute hell and it is hell.
“People have their opinion and you are scrutinised for different decisions you make. It is really difficult.
“I feel like I’m in a situation where I’m damned if I do and damned if I don’t, whatever I do, whatever move I make people are going to have an opinion.”
She added: “There is not a day goes by that I haven’t cried. It’s for so many reasons, it’s because I’m scared, I feel lonely, I feel [bleep], I feel sad.”