Russia and Turkey's policies intersect at some point. In the events in Syria, in the perspective of various organizations in Syria, in the Eastern Mediterranean, Libya and Europe, these intersections are experienced in the energy lines. The downing of Russia's plane and the killing of its ambassador did not break relations. Be a member of NATO, Turkey does not adversely affect relations with Russia. Russia-Turkey relations will be shaped by how the process next time?
The two parties may understand many points, but they differ on many other points, and the Libyan crisis is clear evidence of this.
It is limited to the extent of national interest of both the countries. Where national interest of both the countries are positive, relationship is good, but whenever it is slightly deviates from national interest, there is no cooperation.
Complicated, but as neighbours they should cooperate more instead of killing ambassadors and downing planes. After all the respective governments should represent their people on both sides.People don't want war, they prefer peace.