Why is President Zelensky upset about the peace talks regarding Ukraine?

President Zelensky has expressed frustration at being excluded from peace discussions aimed at resolving the war in his country. According to the CBS News update, he has clearly stated that he cannot and will not accept any outcome from these talks that doesn't involve him personally. In response to this exclusion, Zelensky has taken the significant step of postponing his scheduled trip to Saudi Arabia, where these discussions were taking place. His position emphasizes Ukraine's insistence on having direct representation in any peace process that will determine the future of their nation.