Sandra Pupatello's return to politics was short-lived.

The former Windsor West MPP who finished second in the Ontario Liberal Party leadership race on the weekend said she is heading back to the private sector.

"Oh, for sure," she said, when asked directly if she was heading back to the private sector. "I have to work."

Pupatello left her job at PricewaterhouseCoopers to make a run for the Liberal leadership. She lost to Kathleen Wynne in dramatic fashion on the weekend.

Pupatello left politics in 2011, only to return last fall when she declared her intent to run for the Ontario Liberal leadership.

During her victory speech, Wynne told Pupatello, "I'm going to need you. I'm going to need you to work with me."

That doesn't seem likely.

Surprise shift of delegate support

Pupatello acknowledged reports of an in-home visit with Eric Hoskins, who she said promised her his support. Instead, Hoskins and his delegates on Saturday chose to support Wynne at the last minute.

"He did tell me he would support me. He told me he would. He told me in his own home with his wife," Pupatello said. "He changed his mind. I don’t know when. Who knows what happened on the floor?"

The Hoskins' move came after his group was visited by former premier David Peterson, whose sister-in-law is Health Minister Deb Matthews.

Pupatello denied she redirected $20,000 toward the Hoskins campaign, however.

"There was no redirection [of money]," she said flatly when asked. "This drama going on is nonsense. Let’s get on with it. [Wynne's] great."

'I felt I was going to win'

Pupatello was confident going into the leadership convention in Toronto.

"I felt going in that I was going to win this thing. I had this thing to win," she said.

But Pupatello didn't overanalyze why she lost.

"People told me they would support me and they changed their mind. I framed my priority as she did hers. People pick, and they did," she said. "She got more [delegate votes] than I did. It’s that simple."

Pupatello said the delegate system "is antiquated," but said it's the system all candidates had to work with.

Pupatello knew the final result backstage, before it was announced to the convention.

"There was quite a feeling of calm that came over me probably because I knew I gave it my all. There isn’t one thing I could have done more," she said. "People choose and you accept their choice."

Related on HuffPost:

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  • Ontario Premier Dalton McGuinty, right, congratulates incoming premier Kathleen Wynne at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Kathleen Wynne reacts after becoming the new leader of the Ontario Liberal party at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013. The 59-year-old Toronto politician will be the province's first female and openly gay premier.

  • Sandra Pupatello, right, congratulates Kathleen Wynne after Wynne becomes the new leader of the Ontario Liberal party at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Kathleen Wynne, left, and her spouse Jane Rounthwaite stand together on stage at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Ontario Liberal Party leadership candidate Kathleen Wynne celebrates with fellow candidates Eric Hoskins (left), Gerard Kennedy (right) and Charles Sousa after they gave her their support at the convention in Toronto on Saturday January 26, 2013.

  • Ontario Liberal Party leadership candidate Kathleen Wynne reacts to the results of the second ballot at the convention in Toronto on Saturday January 26, 2013.

  • Sandra Pupatello, right, talks on her phone next to Ontario Finance Minister Dwight Duncan, left, at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Before and After

    What the street outside the convention usually looks like and what it looked like during a <a href="http://www.huffingtonpost.ca/2013/01/26/ontario-liberal-convention-protest_n_2556296.html?utm_hp_ref=canada-politics">protest held by Ontario teachers and unions</a> on Saturday afternoon.

  • An Ontario Liberal Party delegate is heckled as protesters gather outside Toronto's Maple Leaf Gardens on Saturday, January 26, 2013 while the party gathers to vote for a new provincial Leader and in turn a new premier of Ontario.

  • Supporters of Sandra Pupatello look on as Kathleen Wynne gains momentum at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • A look at the size of the <a href="http://www.huffingtonpost.ca/2013/01/26/ontario-liberal-convention-protest_n_2556296.html?utm_hp_ref=canada-politics">protest outside the Ontario Liberal Convention</a> in Toronto on Jan. 26, 2013.

  • Sandra Pupatello, left, gets endorsed by Harinder Takhar, right, at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Ontario Liberal Party leadership candidate Sandra Putatello celebrates with former prime minister John Turner at the convention in Toronto on Saturday January 26, 2013.

  • Ontario Liberal Party leadership candidate Kathleen Wynne speaks at the convention in Toronto on Saturday January 26, 2013.

  • Ontario Liberal Party leadership candidate Kathleen Wynne waves with fellow candidate Eric Hoskins (right) and his wife Samantha Nutt (front left) after he arrived to give her his support after the first ballot at the convention in Toronto on Saturday January 26, 2013.

  • Ontario Liberal Party leadership candidate Sandra Putatello celebrates with fellow candidate Harinder Takhar after he gave her his support at the convention in Toronto on Saturday January 26, 2013.

  • Ontario Liberal Party leadership candidate Sandra Putatello speaks at the convention in Toronto on Saturday January 26, 2013.

  • Kathleen Wynne dances on stage at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Ontario Liberal Party leadership convention delegates are greeted by hundreds of protesters as they arrive at convention in Toronto on Saturday January 26, 2013.

  • Gerard Kennedy waves on stage at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Harinder Takhar waves on stage at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Charles Sousa waves to supporters while on stage at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Eric Hoskins waves to supporters on stage at the Ontario Liberal Leadership convention in Toronto on Saturday, January 26, 2013.

  • Outgoing Premier Dalton McGuinty waves from the stage with his family after speaking at the Ontario Liberal Leadership convention in Toronto on Friday, January 25, 2013.

  • Outgoing Premier Dalton McGuinty speaks at the Ontario Liberal Leadership convention in Toronto on Friday, January 25, 2013.

  • Outgoing Premier Dalton McGuinty speaks at the Ontario Liberal Leadership convention in Toronto on Friday, January 25, 2013.

  • Premier Dalton McGuinty and his wife Terri McGuinty take their seats at the Ontario Liberal Leadership convention in Toronto on Friday, January 25, 2013.

  • Interim federal Liberal Leader Bob Rae greets Premier Dalton McGuinty at the Ontario Liberal Leadership convention in Toronto on Friday, January 25, 2013.

  • Ontario Liberal Party leadership candidate Sandra Pupatello departs after voting at the convention in Toronto on Friday January 25, 2013.

  • Ontario Liberal Party leadership candidate Kathleen Wynne talks with a delegate as she registers to vote at the leadership convention in Toronto on Friday, January 25, 2013.

  • Ontario Liberal Party leadership candidate Gerard Kennedy talks on his phone at the leadership convention in Toronto on Friday, January 25, 2013.

  • A cameraman is silhouetted against a projection screen at the Ontario Liberal Leadership convention in Toronto on Friday, January 25, 2013.

  • Ontario Liberal Party leadership candidate Charles Sousa and his wife Zenaida arrive to vote at the leadership convention in Toronto on Friday, January 25, 2013.

  • Ontario Liberal Party leadership candidate supporters hang banners at the site of the convention in Toronto on Thursday January 24, 2013.