Niall Horan is back in action with Amy Green, who is not his girlfriend

Niall Horan, 19, is back in action with drama student Amy Green, 20. Paparazzi photos surfaced that showed them hanging out together and looking very happy in London, were they were seen having a "romantic stroll" on November 15, 2012, according to the Sunday Mirror.ction with Amy Green, who is not his girlfriend