The presenter, 40, was banned from contacting her boyfriend, Lewis Burton, after she was charged with his assault in December.
She recently stepped down from presenting the first ever winter series of Love Island after she was charged with assault following a well documented row with Burton.
She was was last in court in December where she pleaded not guilty to assault.
She was on bail and awaiting trial to begin on 4 March.
Her family confirmed the sad news, saying:
The statement read: “We can confirm that our Caroline passed away today on the 15th February.
“We would ask that the press both respect the privacy of the family at this difficult time.”
Her last Instagram post came on Thursday with a collage of snaps, captioned simply with a love heart emoji, while Burton shared a happy photo with his girlfriend on Valentine’s Day.
On Thursday, Caroline announced she would be breaking her silence on recent reports about her personal life as she awaits her trial for common assault.
She wrote: ‘I’m going to speak today… mine and my family’s life is no longer up for entertainment or gossip,’ before changing her mind.
A source had told MailOnline at the time: ‘Caroline wanted to speak as she’s so sick of all the rumours and speculation about her.
‘But she posted on Instagram without thinking and once she had some time to calm down she knew better to keep quiet until the time is right.
For the recent series of Love Island, she was replaced as host by Laura Whitmore.
Recently she had broken her social media silence to declare her life is ‘no longer up for gossip’ and said she would be speaking out.
Writing on her Instagram story, she said: ‘I’m going to speak today… mine and my families life is no longer up for entertainment and gossip [sic].’
Twitter is already mourning the sad loss:
More to follow.