Sheppard, who is 37 years younger than the 67-year-old, moved out of the couple's house after a series of arguments, reports femalefirst.co.uk.
"They haven't seen eye-to-eye for a long time and drifted apart. It made sense for Amanda to move out and think about starting a new life without Bryan," The Sun quoted a source as saying.
The couple married in a private ceremony at a luxury resort on the Turks and Caicos Islands, Britain in January 2012.
--IANS (Posted on 01-09-2013)