“Nobody believes in our victory like I do. Nobody,” Zelensky told TIME in an interview after his trip to Washington, D.C.
time.com
The slow rolling of aid to Ukraine has left Zelensky and many Ukrainians feeling betrayed by the west and their allies.
The political and social will to win is still present in Ukraine, perhaps even having hardened after all the things Russia has done, so trying to sell any agreement to the Ukrainian people that allows Russia to keep the temporarily occupied areas is probably not going to fly.
As well, Ukraine is shifting to more and more domestic production or arms, so they are not dependent on the west for as much, and deep strikes to degrade Russian.
Zelensky is very clear eyed that if Ukraine is forced to capitulate to Russia, it will not actually stop the fighting, and may cause conflict to spread even further.