SNIP Following their announcement, unusual details about their marriage from a 1997 Time magazine profile resurfaced. Gates, now 65, revealed a questionable “arrangement” he had with his ex-girlfriend, Ann Winblad, while married to Melinda. Each spring, Gates and his former gal pal spent “a long weekend” together at her Outer Banks, North Carolina beach bungalow enjoying several activities including long walks on the beach. “We can play putt-putt while discussing biotechnology,” Gates said of his yearly trip, which he had done for decades. The Post obtained photos of their secluded Outer Banks hideout home — now used as a “retreat”...