Anthony, better known as "giletslays", is one of many content creators who have been feeding that growth.
He's been making videos about the latest series for his 170,000 followers, and some of his Love Island takes have had millions of views.
Anthony says the real draw of Love Island has always been the discourse on social media.
But to take part you need to be up to date, and a nightly show can feel like too much of a long-term commitment for some.
"Sometimes if people miss a couple of episodes they feel they're too far behind to catch up," says Anthony.
Super-fan Harriet Fisher, who's been watching Love Island since series one, agrees TikTok has become the go-to place for updates.
She says the US version of the show, which has overlapped with the UK edition this year, is "popping off" on the app, and believes this has boosted interest in Love Island overall.
"The way that people are engaging with reality TV and Love Island in general is obviously changing," she says.
"It needs TikTok and social media to survive, to gain viewers.
"It shows that viewers of old can stay engaged, but also get those new viewers in."
But those new viewers are forming a very different relationship with the contestants, Diamanté warns.




