Ukraine’s outspoken ambassador to Germany, who has spent the last eight months urging more support for his besieged country and pounced on any sign of Germany wavering in its support, has returned to Ukraine, he tweeted. Andriy Melnyk – who has drawn eyeballs with tweets questioning whether former chancellor Angela Merkel should be enjoying a vacation while Ukraine is under Russian attack and who told entrepreneur Elon Musk to “fuck off” after presenting a peace plan – had announced months ago that his term in Germany was coming to an end. “Home sweet home,” he tweeted on reaching the border. …