This war between Russia and Ukraine is one in which a pragmatic leader could call to an end for the sake of his people. For Ukraine there's no further need for Zelensky to still trying to push hard, find ways out to talk with Vladimir Putin, not as a show of weakness but as a pragmatic leader.
I remember when Putin was interviewed by one of the journalists. He says that he is very easy to forgive, but the only thing he cannot forgive is betrayal. Putin felt that Zelensky betrayed them by joining NATO and ignoring the Minsk agreements and that was a fatal thing, because Zelensky indirectly invited NATO to the borders of Russia, which is their enemy. A meeting of the two leaders is necessary to resolve this issue and Ukraine should lower their egos for the good of their citizens.
Putin have multiple interest before making any action to demilitarization. Ukraine president Zelenskyy did serious mix-up to put trust on US and NATO partners, no single soldiers to send Ukraine regardless of Zelenskyy's huge load of solicitation. Zelenskyy should accept all the demand, also need negotiate other things for the sake of the innocent citizens. Assuming the two parties remain their stand same as before there will be no improvement except for more annihilation in Ukraine.
Respected leaders of the western world, see only their own interest. This war was avoidable from the beginning, Ukraine could have been neutral. Now look their leader inability to settle on the ideal decision to their kin interest. Ukraine president could quit invading.