Eyebrows were raised on Wednesday night's Love Island as Curtis, 23, appeared to recognise new girl Arabella, 28, as she made her villa debut.
And this has led to sleuthing viewers scouring Arabella's follow list on Instagram, only to learn the ballroom dancer is already a fan of hers.
'Being the detective I am I found the new girls Instagram and Curtis already follows her. So they defo know each other from the outside. You’re welcome. #LoveIsland,' someone posted.
Blast from the past? Eyebrows were raised on Wednesday night's Love Island as Curtis, 23, appeared to recognise new girl Arabella, 28, as she made her villa debut
MailOnline has gone contacted a rep for Love Island for comment on this.
Fans went wild when they saw Curtis gasping under his breath when Arabella was seen entering the Mallorcan villa during a teaser for Thursday night's episode.
Speculation was rife among fans who were convinced the new bombshell arriving in the villa could be an ex-girlfriend.
Curtis whipped off his hat and sunglasses when he laid his eyes on the beautiful blonde for the first time in the villa, in a teaser clip shown during Wednesday's episode.
On the case: Sleuthing viewers scoured Arabella's follow list on Instagram, only to learn the ballroom dancer is already a fan of hers
Well done! 'Being the detective I am I found the new girls Instagram and Curtis already follows her. So they defo know each other from the outside. You’re welcome. #LoveIsland,' someone posted
Love Island: Curtis confused fans as he gasped 'holy' when new bombshell Arabella entered the villa... sparking speculation she's an ex on Wednesday
Former Love Islander Charlie Frederick's other ex-girlfriend has been revealed as the latest bombshell set to enter the villa.
Fans were flabbergasted by his response and questioned whether the blonde bombshell was indeed an ex-girlfriend of the ballroom dancer.
One fan wrote: 'Me wondering weather Curtis’ ex is entering the villa #loveisland.' (sic)
Fans went on: 'The whole uk right now going to bed wondering why curtis gasped at the new girl: #LoveIsland.'
'If that new girl is Curtis’s ex, Amy is gonna dieeee #LoveIsland.'
'Hurry up I need to see why Curtis reacted like that #loveisland.'
Got people talking! Former Love Islander Charlie Frederick's other ex-girlfriend has been revealed as the latest bombshell set to enter the villa
Can't believe his eyes! Curtis is completely taken back in the teaser trailer
Who is she? Speculation was rife among fans who were convinced the new bombshell arriving in the villa could be an