Julian Assange hopes to marry his partner in HMP Belmarsh this year - despite suffering a stroke and losing the latest round in his extradition battle.
His supporters today marked 1,000 days since he was imprisoned.
Fiancee Stella Moris, 38, said in a statement: "It will be 1,000 days this Wednesday that Julian Assange has spent in the harshest prison in the UK. His young children, ages two and four, have no memory of their father outside the highest security prison of the UK."
The WikiLeaks founder is wanted in the US for publishing classified military intelligence information on the world wide web - and is being held at HMP Belmarsh in London on remand due to being deemed a flight risk.
It means that his fiancee Stella cannot have the traditional wedding of her dreams as she'd always hoped - after the two secretly dated from 2015 during secret meetings at the Ecuadorean embassy while he was in hiding.
Since their relationship went public, Stella has become the face of the campaign to free her 50-year-old activist-cum-journalist fiancee.
The pair share two young children, Gabriel, four, and Max, two, who are forced to do their best to get to know their dad through video calls inside one of Britain's toughest prisons.
Speaking exclusively to the Mirror, Stella explains: "We don't really have much time to ourselves as a couple I mean, that's an understatement! I can see him on a weekly basis now.
"We do have constant contact, but we wanted to just... yeah, get married. It has been something we have been wanting to do and the ideal circumstances, we don't know if and when they will happen, so we want to be married."
Stella said she once thought she "would never step foot inside a prison" but has had to adapt to the situation and hangs her hopes on a wedding introducing some normality into the most abnormal of romances.
She smiles as she talks of the man she first met in 2011 and "couldn't be more fortunate to be with."
They first met when lawyer Stella worked on his legal team inside the Ecuadorian embassy. Assange was accused of sexually assaulting two different women in Sweden in 2010 - allegations he has always denied and have since been dropped by Swedish prosecutors who had tried to extradite him to there.
But he is still vehemently pursued by authorities in the US for different charges.
"Julian is everything you want a man to be. He is wonderful, funny, smart, caring," she said. "He is a good father, a good husband. He is the man I want to spend all my time with."
The two got engaged in 2017 and still hope to marry inside prison if authorities agree - and Stella is desperate to know when so she can start organising details like the dress and cake, but prison weddings are notoriously difficult to arrange.
She added: "I am looking at dresses, I haven't picked one yet. It is a little bit difficult given the setting, but we don't actually know what the parameters are yet, the prison hasn't told us all the permissions [so] if we will be allowed a cake, a photographer or how many guests."
Her fiancee, if extradited to the US, faces charges that could land him with 175 years in jail, but the case has caused outrage among many.
In 2010, Assange published secret US military documents leaked by former army intelligence analyst Chelsea Manning. The documents revealed atrocities such as footage of US soldiers shooting civilians from a helicopter.
He claimed that his actions were in the public interest and he went on to be voted Time Person of the Year for 2010.
Yet the US claims he is a spy and plans to put him on trial under the American Espionage Act. A journalist or publisher being tried under this act is unprecedented.
He is being held on remand in Belmarsh - a maximum-security jail - while fighting extradition where he suffered a stroke, facing his third Christmas behind bars.
In the latest court battle, the High Court overturned an earlier judgment to prevent his extradition. Assange's lawyers have now submitted a request with the Supreme Court to appeal the decision.
Assange's campaign has gained huge support among human rights groups and in other quarters. His supporters are concerned for his health and fear he will be extradited before he can marry.
Stella says: "He has gotten weaker and thinner. He is really struggling. You can just imagine not knowing if you're ever going to be released from prison. It is hard to see him in that state."
She is keen to stress that while his poor health is one reason he should not be extradited, it shouldn't detract from the argument that people should be able to publish information that is true without the threat of extradition.
She continued: "The fact [the US] is reaching out and applying its laws outside of its own borders so that it can limit what you are allowed to publish and what you are allowed to read in this country is extraordinary."
"It also means that any country can do the same. No journalist can be secure publishing from here. If you are writing about China or Saudi Arabia or Turkey, now you are opened up to being prosecuted and extradited to those countries if you are writing something they don't like."
"What does that mean? It means telling the truth is a crime."
