This has been a problem for literally decades, and has not stopped collaboration and discussions in the past. The West is disingenuous with NATO expansion, but

This has been a problem for literally decades, and has not stopped collaboration and discussions in the past. The West is disingenuous with NATO expansion, but the USSR and Russia learned to deal with it. Now Putin is using it as his great retort as to why he must invade Ukraine, because he cannot trust the West to keep Ukraine in Russia's vice grip. Explain to me how Putin wants a deal with the West to stop NATO expansion, when all previous promises have been broken. What's different this time?