One guy on the control saw my albanian pass and started complaining about my suitcase. I told him I was late for the flight as we had a connecting flight and the flight before did delay. He started screaming and pushing and yelling to my boyfriend for no reason and at the end after they wouldn’t answer my questions he even talked shit about us

I am sorry you were harassed by the Serbian passport control officers because of your Albanian passport. Serbian Airport officials are horrible! One of the worst Airport in Europe staffed by mentally disturbed lunatics who likely escaped some sort of asylum. And they don't wear nametags if they are on assigned abuse duty because they don't want anyone naming and shaming them. Anyone else please avoid Serbian airport, instead fly to Hungary or Romania where you are likely to be abused less.