The two reality TV stars already had a good friendship before Abi joined the series, but grew closer over the last few months, with Diags even taking the bubbly brunette on a romantic picnic.
And now it seems as though they might finally be taking their blossoming relationship even further.
Abi uploaded a candid snap on Twitter of her planting a huge kiss on Diags' lips in the early hours of Thursday morning (18 July), while the pair appeared to be lying in bed.
She captioned the photo: "Night night everyone @JamesBennewith kisses xxxx "
They both look so smitten! Could this be TOWIE's hot new couple to watch out for when the show returns later this year?
Fans have seen Abi and Diags' relationship develop into more than just innocent flirting in recent weeks - although Abi made it pretty clear that she and the cheeky Essex star hadn't taken things to the bedroom just yet.
Well, he seems to have officially won her over now!
Do you want to see Abi and Diags get together? Let us know below, as the best comment from across the website each week wins £50!