The couple, who no longer star in the reality show, called time on their relationship after dating for a little more than a year.
Although Lydia's rep has confirmed the break-up to Reveal, she and Tom have not publicly spoken about it and have instead quietly gone their separate ways
Lydia met Tom on the show in February 2012 following her split with long-term boyfriend James 'Arg' Argent.
The couple, both 22, announced they were quitting the ITV2 show at the end of last year.
In November, Tom exclusively told Reveal that Lydia was the first girl he had been in love with.
"Lydia is my first proper love and she recently moved in with me in London," he admitted.
Since leaving TOWIE, Lydia has been focusing on her clothing line among other projects.
The pair have not mentioned their apparent split on Twitter, although last week Tom tweeted: "New day, new week, new chapter."
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