Lydia Bright and James 'Arg' Argent have split up after she reportedly found him "out of it" on drugs.
The 26-year-old beauty is said to have called time on their on/off romance after coming home from a night out to find Arg - who was suspended from 'The Only Way is Essex' in November 2014 for cocaine use and subsequently spent a month in rehab - had relapsed and been using the drug.
A source said: "Lydia and Arg have broken up and it's for good this time. It happened because he relapsed.
"Lydia came home early from an event in London and found Arg a bit out of it. She's absolutely devastated.
"She doesn't want this, and drugs just aren't her lifestyle. He went to rehab and she stood by him, so this has come as a real shock to her."
Lydia is said to be enraged by the 28-year-old star's behaviour as she has seen the damage drugs can do because of her mother's work as a foster carer.
The source added to The Sun newspaper: "Lydia hates them. She's really disappointed in Arg."
A spokesperson for Arg has not commented on the claims and the pair - who first got together in 2010 - have not made reference to it on social media, though they have revealed they had separate plans for this bank holiday weekend.
Lydia posted a picture of a drink on Instagram and revealed she was holidaying in Bali, writing: "I have arrived in Paradise (sic)"
And Arg - who recently admitted he has ballooned to 18 stone - has gone to bootcamp.
He retweeted a message from pal Jonathan Clark: "Goin to spend my weekend with @RealJamesArgent up at boot camp!! he smashing it! Can't wait to see him!! #BootCamp (sic)"
The pair's last post together came when Arg shared a picture of them on an Easter egg hunt four weeks ago.
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