Putin probably doesn't want war. Among other reasons, he is dependent of Western Europe for money and development, and his economy is in a poor state.
Oh wow. Of those three statements one is true. Putin doesn't want war, war will cause death to Russians and Ukrainians, something which is anathema to him. Also, war is expensive; it has almost bankrupted the US.
As for being dependent of (I think you mean on) Western Europe, well, what arrant nonsense. You know all that gas Russia sells to Europe via that pipeline what runs through Ukraine? They can afford to close that completely by switching it east towards China. In fact, they've signed a deal to supply China with gas for the next 30 years. That's how dependent they are on us here in the west.
Their economy is in a poor state. If by that you mean they're the largest exporter of oil and the second largest holder of gold then yes, you're still wrong. Russia's economy is in a far better shape than ours in the west, which is why we want to get our hands on it. If we apply sanctions, it will hit western corporations harder than Russian. It will stop, for instance, Shell and Exxon-Mobil from cooperating in oil and gas exploration in the Russian Arctic. Therefore Gazprom will reap all the profit from that. At some point western oligarchs are going to have to either push for war, which the US can't afford, or tell Kerry to wind his neck in.
The truth is that Russia could sink the US economy tomorrow, by selling their US Treasury bonds and their holding of dollars and insisting on their holding in gold futures be paid in gold the US doesn't have. The Fed can't even repatriate the gold the German government sent to them for safe storage, because the Fed has played fast and loose with it, leasing it to gold exchanges in the wrong expectation that demand would be kept low. In the meantime, this artificially cheapened gold has been bought by Russia, China, India, Turkey and the Gulf states. In a year or two the US dollar will be irrelevant.