A mix of rising tempers, nationalism and politics is swirling in the weeks after the July ruling by the Permanent Court of Arbitration (PCA) against China in the South China Sea. But recent communication between ASEAN and China, after the decision, appear to show a mutual desire to get beyond this sensitive issue on the 25th year of ASEAN-China ties, says Kavi Chongkittavorn in this commentary for Reporting ASEAN.