Love Island: Dani Dyer and Jack Fincham win ITV2 series

Dani and Jack are the only couple to have stayed together since the first episode

A record-breaking 3.6 million people watched Dani Dyer and Jack Fincham win the final of this year's Love Island.

More viewers were watching the show on ITV2 than were watching BBC One, BBC Two or ITV in the same time slot.

The pair originally "coupled up" on the first episode eight weeks ago and walked away with the £50,000 prize.

Dani Dyer - daughter of actor Danny Dyer - and pen salesman Jack Fincham have remained together ever since, becoming a firm favourite with viewers.

So much so, in fact, that the final saw ITV2 reach its biggest ever overnight audience.

An average of 2.6 million watched last year's final, which saw Kem Cetinay and Amber Davies triumph.

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Dani and Jack held off competition from Laura and Paul (who came second), Kaz and Josh (who came third), and Megan and Wes.

"It's been an amazing experience, I feel so lucky and grateful, it's honestly been amazing," Dani told presenter Caroline Flack.

"Everything's been a highlight for me... the ups and downs, you take the good with the bad in here."

After Dani and Jack were announced as the winners, Jack was given the choice of keeping the prize money for himself, or sharing it with Dani.

He opted for the latter - meaning the couple will share the £50,000.

Jack said the moment he realised he was in love with Dani was when the male and female contestants were separated, with the boys being taken off to an alternative villa.

"When I was at Casa Amor I was so down, I was like 'I'm meant to be enjoying this', but I was just having a [rubbish] time," Jack said.

"When I was there, I didn't realise how much I'd miss her, and I just thought, you know what, I love her."

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Asked what would be their biggest challenge after leaving the villa, Jack joked: "Living with her."

The pair confirmed they now plan to start house hunting together.

Dani and Jack were the bookies' favourite to win. They had one or two hiccups along the way - including the recent lie detector task.

But asked whether they now completely trust each other, Jack said: "One hundred million percent."

The islanders were seen taking part in a salsa dancing class in the final episode of the series

The final episode saw the remaining contestants prepare for the Love Island summer ball - which involved a crash course in salsa dancing.

The female contestants then went dress shopping ahead of the islanders' final night in the villa.

Later that evening, the couples were seen reflecting on their journeys in the villa before making declarations of love.

Dani and Laura were seen going dress shopping with the other female contestants

The four remaining couples then came together (suitably attired) to make their declarations of love

Dani's declaration to Jack:

"Jack, when I first entered the villa eight weeks ago, I never imagined that in a million years I would have met someone as special as you.

"From our first date together on the beach, to our trip in a hot air balloon, we have already made so many special memories, and I can't wait for even more.

"I have had the summer of my life in here and I owe so much of that to you, Jack."

Jack's declaration to Dani:

"You are everything that I've ever wanted in a girl. Getting to know you and fall in love with you has been one of the most wonderful things to ever happen in my life.

"Firstly, you are an absolute sort. You are so caring and selfless, you have such a beautiful smile.

"When I see you happy, it makes me feel a way that I've never felt about someone before."

Wes described the last eight weeks as "the best summer ever"

Earlier in the episode, Wes Nelson, one of the few contestants to have remained in the villa for the duration of the series, said: "This has been the best summer ever.

"This has been the best experience ever. And I've met the best girl ever. It's just been one bundle of the best."

On Twitter, Jack and Dani's win went down well with most viewers - although many pointed out it was hardly a surprise.

Many fans of the series said they would struggle to fill their evenings now the nightly ITV2 show has finished.

But not everyone was a fan of this year's series, with some calling into question the structured elements of the show.

'A long, hot summer'

When presenter Caroline Flack tweeted ahead of the launch of this year's Love Island that it was going to be a "long, hot summer", nobody knew just how true that would turn out to be.

The UK has been in the grip of a heatwave during the eight-week series, in a summer that also saw President Trump's UK visit, the Thai cave rescue and World Cup fever.

Through it all, there has been Love Island - a series that has been a consistent success for ITV2, breaking the channel's all-time record ratings and frequently attracting more than five million viewers per episode (across all platforms and catch-up services).

The series has seen lie detector tests, contestants who had never heard of Brexit and the inevitable debate about body diversity.

Contestants we lost along the way included Samira - who exited so she could be with her evicted boyfriend Frankie - and Niall, who left early in the series for "personal reasons", later revealing that he has Asperger's Syndrome.

The big questions are whether the winning couple will be able to stay in the spotlight - and stay together - and whether audiences will come back for more next year.