LOVE Island fans think Olivia Hawkins and Zara Deniz Lackenby-Brown are clashing because they dated the same high profile athlete.
The women have had a number of furious rows in the Love Island villa over the course of just a few days.
Now viewers think Olivia and Zara - who appear to have known each other before the show - fell out over an elite sports star.
In last night's episode both of them confessed to previously dating a celeb.
While Olivia teased her ex is an athlete, Zara claimed she'd kissed Usain Bolt.
Rushing to Twitter to have their say, one fan wrote: "Liv and Zara both said in truth or drink that they dated a famous athlete…maybe it was the same guy."
Another said: "I wonder if they dated the same athlete they referenced in the game."
And a third insisted: "Zara and Olivia dated the same man on the outside thats why they hate eachother !! They both said athlete and the vibes are off."
However, Zara's claim to fame with Usain has been thrown into doubt by some viewers, who pointed out the sprinter has been in a long term relationship for years.
Eight-time Olympic gold medallist Usain, 36, has been in a long-term relationship with his partner Kasi Bennett for eight years.
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Kasi is an entrepreneur, a philanthropist and - like Bolt - a Jamaican native. She shares three children with Usain.