Actually, Russians use us because of our strategic geopolitical position. Serbia doesn't have any say in international politics, so it's absurd to think that Russia needs us for that. In international politics, friend, it's not about who likes your or who hates you, it's about how much power and money you have. With that said, Serbia, the government, isn't respected. If you look at it, it's actually Serbia that uses Russia more when you think about it.
Still though, I chuckle at the fact that to this day, only 45 out of the 195 or so UN-recognized countries recognized Kosovo. The countries are either Islamic, western, or coerced into it by the Western powers (ie. Croatia).