Why did ga move towards a two-party system? what were some of the events that led to the change in ga?

The election that occurred earlier this month demonstrated that elections and democracy are improving in Georgia, but it also reinvigorated concerns about a pattern of one party dominance reemerging. There were moments in the last four years when it seemed to many that Georgia could be moving towards a two party system. The simple fact of the United National Movement’s (UNM) survival, even despite arrests and indictments of several of their leaders, was unusual by recent Georgian standards and suggested that the Georgian Dream (GD) was not as committed to consolidating one party dominance as the UNM had been when they came to power in 2003-4. 

Why do you have to ask such hard questions.