LONDON (AP) — Love is, famously, a many-splendored thing. It can encompass longing, loneliness, pain, jealousy, grief — and, sometimes, joy. As Valentine’s Day approaches, the many facets of passion are going on display in an exhibition called “Love Letters” at Britain’s National Archives that covers five centuries. Curator Victoria Iglikowski-Broad said that the documents recount “legendary romances from British history” involving royalty, politicians, celebrities and spies, “alongside voices