Now, as the rest of the islanders carry on without him and viewers rack their brains wondering why he quit the show so shockingly, some fans think Rosie Williams may have revealed the truth behind his exit.
The Welsh beauty may have given a clue as to why Niall left the show, after she mentioned that he had been “dishonest”.
On Tuesday night’s show Rosie made everyone feel very awkward when she confronted Adam Collard after learning he had been calling her needy behind her back.
However, the important part, that many people missed, was Rosie making a comment about Niall that could be linked to him leaving the villa.
During her rant at Adam, Rosie said: “You say about Niall not being honest the other night, but you literally did what he did… and didn’t have the balls to tell me before that you were going to do it.”
One person who did notice her comment tweeted: “Did anyone else notice Rosie reference Niall’s dishonesty in her confrontation with Adam, I reckon he’s broke the rules in some way and that’s why it’s so hush hush #LoveIsland.”
A second person tweeted: “Am I the only one who heard Rosie say ‘you went on about Niall not being honest but you did what he did’. Is the personal reason a girlfriend….? #LoveIsland.”
Another person added: “Rosie said to Adam ‘you had a go at Niall for lying the other night and you’ve done exactly what he did’, what did Niall do?!!!! #LoveIsland.”
While the reason behind Niall leaving has still not been revealed, some fans joked that he left the villa to watch the World Cup.
“Niall has had a good holiday. Gained followers on twitter and Instagram and now going home to watch World Cup. Got to be respected that. #LoveIsland,” suspected one viewer.
While another remarked: “Niall secured a personalised water bottle, more social media followers, a nice holiday and he’s now returning home to watch the world cup.”
A third person similarly thought: “Niall getting a free holiday and fame just to leave in time for the world cup #loveisland.”