The EastEnders actress – who has a one-month-old baby daughter with Dan – posted a string of tweets on Tuesday morning (31 March) after Dan's ex-girlfriend spoke out about him in an interview.
Dan's ex had accused him of being controlling and manipulative, while leaked audio recordings are alleged to feature him being verbally abusive to his former partner, who is the mother of his son Teddy, one.
Jacqueline had remained quiet – until now.
Today, she broke her silence, saying: "I can assure you I wouldn't stand by a man capable of everything dan has been made out to be, he is my best friend, boyfriend and he is a brilliant father, above all else, I just want to clear up, he has never once been violent or even shown signs towards me at all.
"People selling stories on him, show one side to a story, but people around dan know the whole truth, and you would all be shocked.
"I am 100 percent not saying what Daniel has said was right or okay, but people make mistakes when on dark places, and it's something that we sorted out privately not in front of the whole world, it's something he has apologised for and is embarrassed about."
Dan's ex has not responded.
Essex star Dan hasn't said anything today but did issue a statement in March apologising for what was heard in the leaked audio recordings.
He said: "It has taken me a while to find the right words but I would like to say that I am truly sorry to anyone who was offended by what they heard.
"I am unable to talk about the difficulties with my current family situation but I am taking steps to resolve it to achieve the best outcome for my son. I am ashamed and embarrassed that I allowed myself to reach such a dark place that I behaved in a way that even I didn't recognise.
"While I acknowledge that there is absolutely no excuse for my deeply regrettable behaviour, I plead for some understanding that I had no intention of violence."
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