Derek Hough and his partner Hayley Erbert have been dating for over five years and have an idyllic home life in California.MORE: Bruno Tonioli suffers incident on DWTS alongside fellow judgesThe pair have a legion of fans around the United States who have been following their relationship since they met on Dancing with the Stars, and many of them are hopeful that the pair will get engaged soon.The DWTS judge and his girlfriend were inundated with messages over the weekend after Derek shared a