Its not going to stop without talks, not trying to talk is worse than talking and failing.
The west doesn't want a proxy war in the Ukraine as much as Russia does.
Running through the various scenario's how to close this off though.
1 - Russia Pull back (not likely)
2 - Putin displaced I have zero idea if this is even possible and Russia say sorry and the west gets all the re-build contracts (Russia wont pay for anything)
3 - Ukraine gets cut in half, other half becomes part of NATO & the EU and the people are allowed to move freely before the line is drawn
4 - China leans on Russia and mediates better terms just for them.
5 - Not worth thinking about.