>

The US has also made several diplomatic overtures to Armenia, so Armenia will latch on to that like a drowning man. How this all turns out is uncertain due to Turkey, but if some deal can be struck behind closed doors then Armenia could fall within the NATO sphere of influence some day.
Depending on concessions, I could see Turkey eventually agreeing to Armenia aligning westward (even if not outright given NATO membership) simply because the process of doing so would give them massive leverage to arrange the conditions for it.
Can't blame the Armenians for this. The Russians have been surprisingly useless in protecting them from Azerbaijan. Why would they commit to deepening the relationship at this point? Russia can't offer them jack. >

Russia offers less than nothing. A deepening relationship with what is now a Pariah state for a lot of the world can be actively harmful and comes with diplomatic downsides. Add to this the lack of CSTO support and Russia's treatment of other states in its alleged sphere of influence. The juice is not worth the squeeze for Armenia. >

And Russia can at any time decide they need a win and turn their training forces into invasion forces that already are in the country they are invading. >

Well thats one less friend of Putin, keeps getting better and better. >

Putin doesn't want friends.
He wants subjects. >

Armenia is geographically screwed and relied on Russia for protection, which Russia did not give. So now Armenia doesn't trust Russia and won't host the training in their land.