Both sides are responsible for the rising tensions in the Mediterranean.
The international agreements are violated by both countries. I don't know which side has started it but i see no settlement of issues for a foreseeable future despite the economic agreements and official meetings. Since both countries are trying to team up against one an other, it is really hard to say that it will end without a serious conflict.
In case of teaming up, Greece will have more chance to have more allies at least between western oriented countries. On the other hand Turkey can be called the stronger side on its own.
Let us hope for no conflict