In September 2013, just before the Maidan revolution, 88% of Ukrainians felt “positively” about Russia, says the Kiev International Institute of Sociology. By May 2015, that number had fallen to 30% (it would be a lot lower if it excluded people in the rebel-held south-east).

http://www.economist.com/news/europe/21654663-war-has-made-most-ukrainians-see-russians-enemies-not-friends-putin-uniter?fsrc=scn/tw_ec/putin_the_uniter