I guess they will start acting more resolute only when NATO bombers quartered on Ukrainian airfields will be attacking Moscow.
I can't tell if you're making a literal statement there or if you're actually saying that you think that's what is going to happen.
In the latter case, I seriously think that no one wants that to happen, including any world leaders. Militaries of equivalent technological advancement fighting on the world stage would be horrifying. Everyone avoided it in the Cold War because of that (an actual ground and air war that wasn't between geopolitical proxies, that is, not the MAD thing), and considering that we're not even in a Cold War now I'd say it's even less likely to happen any time soon. Lots and lots of things would have to change.
Apparently the Russian government can't do anything about Ukraine besides publishing strongly-worded proclamations.
Russia decides to pretend it is EU?
Nah, most of what they're saying is for their own benefit I believe. "Look, fellow Russians! Look upon their hypocrisy! The EU is full of liars and schemers!" That seems to be the tone they're setting, even if what they actually say may be true (and I think it is? Haven't personally been following on what the EU has actually been doing about this). If they get the EU to feel guilty over it then that's bonus points.
I think how it'll play out is that Russia gets these words in now, the EU feels guilty and looks a little more bad on the world stage, Yanuk gets put on trial for the crap he has pulled throughout office, the EU vindicates itself by pointing out what a douchebag the guy was and they didn't know how bad at the time, and then Russia goes "Look how bad that guy was, the Ukrainian government is so much worse than ours!"
It's like a double victory for self-propoganda for Russia. Not that I'm saying it's bad of them to do that, everyone does it, but I think that's going to be the reaction from Russia (other than possibly gobbling up the Crimea with Sevastopol).
Tymoshenko declared Ukraine would soon join the EU. Seems she's getting over-enthusiastic.
Even if much of the Ukraine is now anti-EU or neutral to the EU instead of Pro-EU, I take it that they are by and large way more anti-Russia. It's best for them if they side with the EU so they can maintain geopolitical security while being right next to Russia. I'm not sure if they want to do that before or after the whole thing with the Crimea is sorted out since I think the EU is somewhat pro-separationist in its attitude? Not sure.