Its my bet that Zelensky's time is limited, not only has he come up with some cock and bull story about having to turn off the gas because the Russians are in the area but he is also playing on the food security issue as leverage against Europe for not supplying him with more and more high tech weaponry including nuclear weapons.
By putting the boot into Europe, he is biting the hand that feeds him. About all he has going for him now is US support but the does not count for much as he is not providing them with what they want, a way to damage Russia.
I will be so glad when this crap is over and done with, at least the folks in Mariupol are free of the bastard that trampled on them for the last 8 years.