The Essex favourite had the widest smile we've seen in a long time as he posed next to his co-star while filming for the ITV2 show.
Fans of TOWIE were thrilled when flatmates Diags and Fran confessed their feelings for each other during James 'Arg' Argent's food-themed party last week.
Diags had said: "You're the best thing that's come into my life, so far. You don't understand how long I've been waiting to say how much I liked you but I couldn't – there was never a time I could say anything."
Fran – who had temporarily moved out of their shared flat – replied: "Being away from you has made me realise I have fallen for you. Absence makes the heart grow fonder and I realise how much I like you."
And then on last night's episode, we saw Diags treating Fran to their very first date – and proving what a romantic he is!
Shunning the usual dinner, cinema-type date, he instead set up an evening campfire next to a lake, providing marshmallows to roast and champagne on ice.
He even provided a clearly overwhelmed Fran with a hot water bottle and furry throws just in case she got chilly. Seriously good work, there!
"I'm so happy! I feel like a little girl, all excited and giggly," said Fran.
Later on, they discussed their relationship, promising each other they wouldn't allow anyone else to get involved or pressure them to move at a pace they were uncomfortable with.
"I just want to be how we are, just normal," said Diags. "We do what we want and don't worry about anyone else."
TOWIE airs Wednesdays and Sundays on ITV2.
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