Well first off , if you are really serious to have a good relation with a Slavic woman - you should just as hard try to learn her language.

In general it would mean that you should learn Russian.

I myself wouldn't mind to meet with a Slavic woman in her country and with an interpretor - if that is going to make her feel more easy and relaxed.

Of course assuming that it is all thrustful and it is not meant to be a scam.

You should realize that many young people /students learn English at school.So some of them can have some sort of conversation with a foreigner.

If it is in case of an emergency , you can still use Google translate on your mobile phone.

Most McDonalds and other restaurants in E Europe /Russia have a free wifi that you can use.

There can be several reasons why a woman will /cannot learn English.

Most of the times it will greatly depend on her personal and financial situation.

Does she has small children ?Is she working long hours every day ?

Don't forget that these women /people also work on Saturdays and Sundays.

While you may have free weekends the whole year long and also enjoy a 3 or 4 weeks vacation - things are different over there.

Most of the time shops close at 21.00 or 22.00 every day.
On Saturday and Sunday also - so ... this is a different life than yours.

And I will bet that your salary is way more than what they earn every month ...

So , you put 1 and 1 together ...