Former TOWIE star Dan popped the question to the EastEnders actress, and she happily said 'yes'.
Breaking the news over Twitter, Dan said: "She said YES!!! I am the luckiest man in the world to be marrying the woman of my dreams @jacquelineMjos!!!"
Dan and Jacqueline, who are parents to baby daughter Ella, have previously spoken about their desire to tie the knot.
She said YES!!! I am the luckiest man in the world to be marrying the woman of my dreams @jacquelineMjos !!!— Daniel Osborne (@DannyO) June 15, 2015
Last month, Dan gushed about Jacqueline in a heartfelt message, saying: "My lady is THE most beautiful human I have ever seen! Sounds cringe but true.. What really counts though is that she is the most beautiful person inside too!! I am one lucky man! #soppymoment."
Over the weekend, Dan told fans that he is still very much in love with Jacqueline, as he shared a picture of himself kissing her on the cheek, saying: "She's just everything."
Dan and Jacqueline first started dating in 2013 and then reunited again in June 2014. They welcomed baby daughter Ella in February and Dan is also dad to one-year-old son Teddy from his previous relationship with ex-girlfriend Megan.
In the past week, the couple have been sharing tons of loved-up photos on their holiday in Greece with Ella, where they also attended Jacqueline's sister's wedding.
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Dan and Jacqueline's romance: