“Real Housewives” couple Simon and Alex McCord celebrated their 10-year anniversary with a romantic dinner — and Simon had a sweet surprise for her. The couple dined Friday night at Georgica in Wainscott, where chef Seth Levine created a heart-shaped dessert and placed a diamond and tourmaline ring in the center. A spy told us, “Alex was so surprised and delighted — they looked totally happy and really romantic together.” The two ended up staying until the early hours of Saturday morning knocking back Absolut cocktails and dancing with friends who joined their celebration.