How did the relations between the USSR and the countries of the social camp develop during the Cold War?

They quarreled with Yugoslavia in 1948, relations were restored in 1954.
There were good relations with Albania until 1956, then began to deteriorate due to the struggle against the cult of Stalin’s personality, in December 1961 the USSR withdrew the embassy from Tirana and Albania began to be hushed up in the Soviet media until the mid-1980s.
The rest of the European socialist countries were part of the CMEA and OVD, their cooperation with the USSR was constantly growing in all areas, each even had its own cosmonaut, and Bulgaria had two at once. In 1956, troops were sent to Hungary, and in 1968 to Czechoslovakia.
The socialist countries supported all the initiatives of the USSR leadership, for example, the deployment of troops to Afghanistan or the boycott of the Olympics in the United States in 1984. The exception was Romania. In 1984, they abandoned the boycott of the Olympics and sent their athletes there, in 1968 and 1979 they did not support Brezhnev’s actions. As a result, trade between the USSR and Romania did not grow as fast as with Bulgaria.