Yes, they might keep schtum when it comes to talking about their relationship but that doesn't stop them from making us 'Aw' with their cute photo updates on Twitter.
Just see above for example.
Pro Green tweeted the snap with the caption 'Airplane Swag' earlier today.
Related Article: [Professor Green and Millie Mack jet off on hols]
However, it would seem there was more to the flight than this cute snap let on, after Millie confessed the following on Twitter:
"Interesting flight... Note to self.. Do not mix sleeping pills and red wine! At least I kept the flight attendants entertained."
The pair have been off holidaying in various exotic locations, keeping us all super jel at home with constant photo updates.
But just where exactly have they been? Well, that has been kept a secret.
All we know is that Millie looks hot in a bikini, and that the pair have been celebrating their first year anniversary in style.
But now they are back, Pro Green has some even bigger plans for the weekend, involving snow.
Well, we are glad to hear someone is enjoying it.
Yep, the rapper is planning a huge snow fight in Battersea Park, London tommorow.
So if you fancy being pelted with snow by Professor Green then you know where to go!