The couple seemed to be taking long time to reach each other out...especially on Twitter. The couple has maintained a long silence for over a period of time giving away hints of break-up.The ususal couple who has never shied away from showing off their love in public seems to be re-thinking over their relationship again.The Twitteratti has raised concerns of absence of mentioning each other in their tweets.In his recent tweet, Shane thanked his friends and family for birthday wishes but failed to name his lady love who is back home in London.Liz, too tweeted about how she spent her day fixing a alpaca fence at her place.See more pics...