No it doesn't. Russia can enter into an alliance with whomever they want, and the West can respond accordingly. I am not aware of an instance where NATO has pushed for legal guarantees that Putin not enter into an alliance with someone. No leader in their right mind (including Putin) would or should ever agree to that.
This angle to the conversation is pointless to engage in with you, because by your own admission you hold Putin to a different standard. It is like having a conversation with someone about the UT/UK basketball game the other night with a person who thinks UK should be allowed to have 6 players on the floor at all times and have their guys foul out after 8 fouls instead of 5.