Robin Roberts has an incredibly strong relationship and while her partner Amber Laign is notoriously private, she occasionally features in posts on the star's social media.MORE: Robin Roberts announces courageous career move in emotional postAnd most recently, the Good Morning America co-anchor took to Instagram to share some impressive photos from an extra special date night.The date night in question was to celebrate Robin and Amber's 16th anniversary, and Amber pulled out all the stops to