Much UK gas comes from Russia. Ukraine seeks the same supply and most pipelines run through Ukraine; however, now the UK has much more by way of liquid import facilities, it's not as crucial as it was.
The only angle for future gas supplies would be if the protestors take power, get upset and close the pipelines. The President and Russia are close. Complain too loudly and they could cut present supplies, but that's not as big a deal as it was ten years ago.