The couple dated each other last year, however they split soon after Dan announced that he was expecting a baby with his ex-girlfriend.
However, whispers have been rife for weeks that they are back together - and Jacqueline's photograph doesn't seem to quash them!
Jacqueline, who plays Lauren Branning in EastEnders, posted the picture on Instagram and in it she has her arms around Dan's neck and shoulders. He is also hugging her and they are both smiling at the camera.
Although she didn't comment, the actress did post an emojicon of a little face with blushing cheeks beside it. Aww!
Yesterday, Dan and his TOWIE co-stars flew back to the UK following their 10-day trip to Marbella, which saw them filming a two-part special for the new series.
While he was away, Dan and Jacqueline tweeted to say how much they missed each other, which only seems to confirm things further.
What a beautiful couple. Watch out, Mark and Michelle!
Dan and his six pack feature in the Only Way Is Marbs trailer. Watch it here: