Secrets are instruments of the trade for spies, but they can really kill a marriage. True Lies 1×02 “Public Secrets” is all about secrets from Harry (Steve Howey) and Helen’s (Ginger Gonzaga) past. Specifically, about past relationships rearing their not-as-ugly-as-their-spouses-would-like heads. With their marriage still trying to find solid ground following the revelation of Harry’s…