Well Milsovic did a bad job of oppressing and exterminating Albanians. Especially after he had the example of the Israelis and just ignored it. Really he played right into the Albanians hand.

KLA waits until Yugoslavia is on thin ice after the Bosnia stuff (having been specifically told not to try anything like that in Kosovo).
KLA does some nasty stuff
Milsovic does the political equivalent of jumping up and down on the thin ice.
Yugoslavia goes in the drink.

Even the Albanian haters are probably upset with him about that.

So it sounds like it's known in Serbia that you're attempting to buy Russia's friendship for a few billion dollars. Personally I have my doubts that will work out so well for you. Your best bet at getting Kosovo back is to have a great economy. Because friendly as they are I don't think Russia will help you invade. So the economic lose will only hurt your chances of reclaiming Kosovo.

Where it would help you is if you were worried about losing another province. Are you?