What was nationalism and the vision of Serbia in regards to that​

Serbian nationalism asserts that Serbs are a nation and promotes the cultural and political unity of Serbs. It is an ethnic nationalism, originally arising in the context of the general rise of nationalism in the Balkans under Ottoman rule, under the influence of Serbian linguist Vuk Stefanović Karadžić and Serbian statesman Ilija Garašanin.Serbian nationalism was an important factor during the Balkan Wars which contributed to the decline of the Ottoman Empire, during and after World War I when it contributed to the dissolution of the Austro-Hungarian Empire, and again during the breakup of Yugoslavia and the Yugoslav Wars of the 1990s.

Explanation:

I think you can't cheat your gf

because I know when somebody break your heart so what happened with you