Its common sense. Treaties state what is promised, NOT something said in negotiations.
If you buy a house you cannot argue you were promised something in negotiations, which is not in the contract.
Don't take a dump in someone else’s backyard.
Just because you're the biggest kid on the block (and everyone knows that), shouldn't mean you get to do whatever you want.
We get our way most of the time! We have so much political influence, economic and military might, that on most issues where we want a desired outcome and throw our weight behind, we will get our way. But there is such a thing as pushing to much.
With Russia, we have been expanding NATO Eastward. Invading nations that are formal allies with them, Syria. Invading nations that were aligned with them, Iraq (under false pretenses BTW). We have been sponsoring coups in nations aligned with them, Venezuela. We have attacked nations aligned with them, Libya. We overthrew a government in Ukraine 2014 and installed ours which was rabid anti-Russian and then built 12 CIA bases there operating against Russia...
Just back off and give them their space! They know they are the underdog. They avoid conflict with us. Ukraine was us cornering a dog and then pretending that this dog came out of its corner trying to bite for no reason at all (the "unprovoked" crap).