George Stephanopoulos and Ali Wentworth enjoyed a special kind of date night over the weekend while out in Manhattan – and it was bittersweet.MORE: Ali Wentworth shares stunning selfie amid 'brutal' family changeOn Sunday, Ali took to Instagram to share a series of photos from their Saturday night out at the Michael J Fox gala, which was marking 20 years of its foundation, which is dedicated to finding a cure for Parkinson's disease, which the actor suffers from.Michael first publicly disclosed