Why is President Zelenskyy furious about the peace talks in Saudi Arabia?

Ukrainian President Volodymyr Zelenskyy is furious about being excluded from peace talks between U.S. and Russian officials in Saudi Arabia. These discussions concerned the war in Ukraine yet took place without Ukrainian representation, which prompted Zelenskyy to cancel his scheduled trip to Saudi Arabia in protest. Instead, Zelenskyy traveled to the Turkish capital where he publicly criticized these negotiations. His outrage highlights a fundamental diplomatic concern: peace talks about Ukraine's future were being conducted without the participation of Ukraine itself, undermining the country's sovereignty in determining its own fate.