Peroni took 13.8 per cent of the vote in Sudbury, or 4,653 votes.
The NDP's Joe Cimino was the winner in the riding, garnering 42.2 per cent of the vote, followed closely by the Liberals' Andrew Olivier, who took 39.3 per cent.
Peroni said she's concerned that the scandal-plagued Liberals now have a majority in Ontario once again.
“I don't understand how an electorate can come through the last 10 years ... with all of the thieving and connivery that has gone on at Queen's Park ... and have them re-elected,” Peroni said. “That's a little astounding to me quite frankly.”
She had kind words for her fellow candidates in the Sudbury riding, though.
“I think all of the candidates had great values, were talented and ran good campaigns,” she said.
Although Peroni said “the results are not what we were hoping for,” she doesn't rule out another kick at the can when it comes to politics.
She did promise her family she'll take a break for “at least a month.”
Peroni, a long-time trustee with the Sudbury Catholic District School Board, said she's also evaluating whether she'll run in the trustee elections, which take place in October.
“You know what?” she said. “I'm going to sit down and have a conversation with my family about that in the next few weeks.”
Peroni, who was diagnosed with breast cancer in 2012, hasn't exactly had an easy time of it over the past two and a half years she's been the PCs' Sudbury candidate.
“I'm feeling good now and I'm sure I will continue to feel good ... but there's no doubt it takes a toll on your health even without the cancer,” she said.
“It takes a toll on your family. Being on the campaign trail and taking it seriously is challenging.”