Likely, the problem there is that there is no clearly Ukrainian part nor is there any region of the country that it clearly populated by one ethnic group. There is always a mix in these regions, not just of people, but also of ideas. That was the reason they split in the first place. Further splitting just to favor one group of people will only lead to more problems. People really need to learn to get along, especially since the groups living here have been neighbors for a long time. And this region is so small that it should go back to Moldova and minority right must be respected. There is nothing odd about ethnic mix in border regions. Most other Slavic nations have that and they don't have breakaways in those regions.