Getting separation instead of divorce to remain sponsored by the husband

Hello!

I have some questions about my divorce situation.

I'm married to Egyptian, we made a marriage in Georgia, but I have Russian citizenship. As I know, we can't be divorced here. Maybe there are some ways to do it, right?

And if I got separation from my husband and still not get divorced (I would like to stay a bit on his visa), will he has any legal possibilities to return me back because we are still married on papers?