Speaking to reporters the day after the vote, Weaver, whose party tripled its support earning three seats in the legislature, said he has no intention of rushing into an alliance with either the Liberals or NDP.
Looking at seats the NDP picked up where the Green vote - if it went entirely Liberal - could have turned the race, the NDP gained in all but two, Burnaby North and Courtenay-Comox.
"And so tonight is the beginning of something very different".
"I don't think the Liberals had a message about how to make things better".
If that seat flips to the Liberals after the final vote tally in two weeks, Clark will regain a bare majority government - even without the Greens' support.
Horgan sought to portray Clark as out of touch with regular British Columbians who feel the economy is not working for them, while Weaver cast the Greens as political outsiders.
John Horgan's NDP was in the lead for much of the night.
British Columbia Premier Christy Clark's Liberal Party was neck to neck with the left-leaning New Democratic Party in an election that could spell uncertainty for multibillion-dollar energy projects.
"But this is what we do know". He insisted throughout that he was willing to work with either main party, although the bitterness between him and NDP leader John Horgan was on display many times during Weaver's four years as a lone Green MLA.
Weaver, now holding the balance of power, also hinted at how his party would handle votes in the legislature, saying the Greens would take an issue-by-issue approach, with all decisions on an "evidence based" and "principled" position.
But Bennett had the last laugh, winning a majority and ruling for 20 years.
The Greens received 8 per cent of the popular vote in the 2013 election along with their lone seat, but Mr. Weaver boldly forecasted gains in areas of NDP strength on Vancouver Island and the Kootenays.
Our interactive results tracker above will update in real time as votes are counted.
In addition, the absentee ballots have not been counted yet, which means that the final count by Elections BC between May 22 and 24 could still change the outcome.
A woman arrives at a polling station to vote in the provincial election in the riding of Vancouver-Fraserview, in Vancouver, B.C., on Tuesday May 9, 2017.
Christy Clark and the BC Liberals aim to continue to rule B.C. with a minority government after neither major party gained enough seats in Tuesday's election to secure the 44 seats required for a majority.
There was plenty of smiles and laughter early on at Liberal headquarters as the party took an early lead in the polls.
And if not for local NDP riding in-fighting in Cowichan, Columbia River-Revelstoke and Fraser-Nicola over bitterly contested nominations, likely costing the party three seats, Horgan would be premier-elect now.
Peter Fassbender, the Minister of Community, Sport and Cultural Development and the Minister Responsible for TransLink, has lost his seat, as has Suzanne Anton, the Minister of Justice.