Taking to Instagram this evening (12 July), Alex shared a gorgeous picture of himself and Olivia taken from last night's finale episode and told fans how he believes the pair are in it for the long haul.
Commenting alongside the snap, he said: "Found a keeper @oliviadbuck."
Olivia and Alex were announced runners-up to Nathan Massey and Cara de la Hoyde in last night's finale episode and, despite not walking away with the £50,000 prize money, the couple are just pleased to have found each other in the villa.
Following the show, Alex and Olivia shared a cute selfie from their bed and told fans just how happy they are together.
Olivia gushed: "Oh my lord, GUYS! I'm back, this is Olivia - I am so overwhelmed by all of your amazing support. You are the backbone of my journey and I love you all. Alex and I are so happy and I promise I am getting through your messages. I love you all xxxxx."
This came after Alex was pictured with his arm around Love Island host Caroline Flack at the finale episode's after party.
Given that Caroline and Olivia were also filmed having a good old girly dance together, there was clearly NOTHING to worry about!
Watch Olivia and Caroline busting some moves here!