Lisa Wilkinson in big trouble over Bachelor tweet

Lisa Wilkinson might be in big trouble with her bosses over at Channel Ten after she gave away the ending to The Bachelor finale.

Last night, Matt Agnew gave Chelsie McLeod the final rose, leaving runner-up Abbie Chatfield devastated and fans delighted.

But before we were able to see Abbie's heartbreak and Matt finally confessing his love for fellow science professional Chelsie, The Project host Lisa Wilkinson nearly blew the ending for everyone in one single tweet.

WATCH: Helena just slipped up her interview confirming Chelsie wins

Two hours before The Bachelor finale ended, Lisa tweeted out how she wanted Abbie to become the next Bachelorette, seemingly confirming that she did not win the show.

Lisa swiftly deleted the tweet, but by then it was too late.

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"I don't care what anybody says, I want Abbie Chatfield to be the next #BacheloretteAU," Lisa tweeted.

The tweet went out just before Abbie Chatfield's disastrous conversation with Matt's best friend, Kate, meaning people were still unsure who was going to win Matt's heart.

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The only way I can describe this moment is complete and utter shock. I was numb. I couldn't and didn't want to feel anything. I had felt for weeks that what Matt and I had was real and I trusted him wholeheartedly when he told me how he felt about me. From Hometowns, I forgot the cameras were there. It didn't feel like we were filming a show at all, it felt like we had this real relationship built in a little bubble of "The Bachelor" and we would be out soon and able to live a normal life. Hearing Matt say "my heart is with someone else" reminded me that we were filming and that Matt had to make a difficult decision, and he did not see in me what I saw in him. I felt silly for ever imagining Matt would love me. It was like emotional whiplash. I was so confused and it felt like I was in a dystopian reality. The second the cameras turned off, I sobbed. I screamed. I couldn't breathe. I didn't think think this would be how we would end. I spent weeks crying about this relationship that had almost no closure. I still haven't fully healed from my relationship with Matt, but I know he and the gorgeous woman he is with are happy, and that's all that matters. #thebachelorau

Last night Australia breathed a sigh of relief when Matt confessed his love for Chelsie McLeod.

"I've never believed in such a thing as the perfect woman until I met you," Matt told Chelsie, "You encapsulate everything that I'm looking for in a woman."

"My biggest fear is opening up to that special someone, and having my heart broken into a thousand pieces."

He continued: "But coming into this experience, I promised I would throw caution to the wind and I'd overcome that fear.

"My heart is fluttering ... and even though it could get broken into a thousand pieces, I feel the time is right to take the plunge, to take that leap and tell you how I feel. Chelsie, I love you.

"I love how you giggle when you're nervous. I love that you go full nerd as soon as there's some maths involved!

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"Above all else, though, I just love how you make me feel and you make me want to believe in fairytales because when I'm with you, I feel like I'm living in one."

Matt also presented Chelsie with a ring, but didn't pull a Blake Garvey and get down on one knee.

Milly Haddrick

Milly is a journalist who passionately devours all the latest and juiciest news. A devout tea enthusiast who's a firm believer in quality downtime, Milly's weekends are usually spent relaxing with a big plate of food, a nice cuppa and the crossword.

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