If you look at the globe, could you tell west from east? There is no East or West, these things are made up. It's all imaginary. Each country is free to believe what they believe, no matter if it's in the so called East or West. Don't try to look it from a particular 'side'. Look at it how YOU see it. Make you own judgements.
Would you think Russia and the rest of Europe be a good match? How many values do they share? Not many. Russia's actions have proven not letting them in NATO was an extremely good decision. I would not want to side with a country like that.