Australia's federal opposition is in disarray, with the Liberal and National parties set to occupy separate seating arrangements in parliament after their leaders failed to resolve a deepening rift over coalition arrangements.David Littleproud, who survived a leadership spill challenge from Colin Boyce on Monday, and Liberal deputy leader Sussan Ley met for what was described as 'civil' talks but emerged without an agreement on terms for reuniting the conservative alliance.The extraordinary breakdown comes just months before the federal election, with Prime Minister Anthony Albanese taking a swipe at the opposition's dysfunction, comparing their internal battles to the reality TV show Married at First Sight."You can't fight for Australia if you're obsessed by fighting each other," Albanese said. "And that is what we are seeing on the other side, with the fragmentation of people competing for who can be more right-wing."The split reflects deeper ideological tensions within the conservative bloc about how far right the opposition should position itself. The Nationals have been pushing for more hardline positions on issues including immigration and climate policy, while some Liberal moderates fear this alienates suburban voters the party needs to win back.Political analysts say the public display of disunity is unprecedented in the coalition's history and could prove fatal to their election chances."Voters want to see an alternative government that can actually govern," said one senior Liberal source, who asked not to be named. "Right now we look like we can't even sit in the same room."The parties will continue negotiations, but with parliament resuming this week, the optics of separate seating arrangements will be hard to avoid.