Warning! Spoilers ahead for NCIS season 22, episode 17.Tony and Ziva are often considered to be NCIS‘ best romance, but NCIS season 22, episode 17 just reminded me which couple is really the best. While romances have never been the focus of the NCIS shared universe franchise, they have been a significant subplot, with characters like Tony and Ziva experiencing years of a will-they/won’t-they romance. In fact, most NCIS couples have been in slow-burn relationships.