Why was Ukrainian President Volodymyr Zelenskyy excluded from crucial discussions?

Ukrainian President Volodymyr Zelenskyy was excluded from discussions that could determine his nation's fate while he was in Ankara meeting with Turkish President Recep Tayyip Erdogan. This exclusion came during apparent talks between American and Russian officials in Riyadh, Saudi Arabia. The sidelining of Zelenskyy from these pivotal discussions raises significant concerns about Ukraine's agency in negotiations directly affecting its future. This diplomatic arrangement suggests a troubling shift in how global powers are approaching the Ukrainian conflict, potentially making decisions about Ukraine's future without its direct input or representation.