Declan Costello
... that Jackie Kennedy teased former love interest Declan Costello that a 1955 double date involving them and their spouses had almost broken up the Kennedys' marriage?
... that <a href="./Jacqueline_Kennedy_Onassis" id="mwsA" rel="mw:WikiLink" title="Jacqueline Kennedy Onassis">Jackie Kennedy</a> teased former love interest <b id="mwsQ"><a href="./Declan_Costello" id="mwsg" rel="mw:WikiLink" title="Declan Costello">Declan Costello</a></b> that a 1955 double date involving them and their spouses had almost broken up the Kennedys' marriage?