They quizzed each other on whether they had cheated on a partner or if they had ever looked at a partner’s private messages without their permission.
In Casa Amor, the boys did later express guilt that they had taken part in the kissing game but agreed they were just “getting to know” the six new girls.
Earlier, the boys had departed the villa quietly with some leaving gifts behind for their current partners, including their rings or necklaces.
Liberty Poole was the first girl to realise they had left and alerted the others.
In Casa Amor, the boys were soon joined by six new female contestants and they discussed whether they were open to new relationships.
Jake Cornish, who is in a relationship with Liberty, said: “I’ve got a girlfriend. It’s official.”
In the Casa Beach Hut, Hugo Hammond said: “I love it, I absolutely love it. Casa Amor is my new beginnings, it’s my fresh start. We’ve got a new Hugo sitting right here.”
In the main villa, the girls were joined by a new batch of male contestants, including a racing car driver and model, vying for their attentions.
Car salesman Harry Young was the first Islander to be recruited via dating app Tinder.