I truly have no idea when Greece exits, but I sense that Tsipras may also think that the Euro Gods are not ready to allow Greece to exit and wants to extract better terms.  This is my theory, probably wrong, but as they say, opinions .... everyone has one.

Regardless which way it resolves itself for the near term, it is interesting to say the least.  My Greexhaution has abated some given how interesting the last three days have been. :-)