Meatball42
Police Officer
Tony is taking a lot of interest in who Ziva is talking to because it's her boyfriend from Mossad, and Tony knows it . Tony's had a little crush on Ziva ever since she 'slouched provocatively' in McGee's chair (Kill Ari Part 1, 3x1). Recently (Corporal Punishment, 5x10, Recoil, 5x16) Tony has become more protective of Ziva and teases her a lot more whenever she is or seems to be involved with someone else. Since Agent Afloat (6x2) especially there has been a lot of electricity between the two, and Tony's crush has become pretty obvious; In Legend Part 1 (6x22) both Abby and Ducky implied that Tony was personally interested in Ziva. Ziva has been obviously protective and a bit possesive of Tony as far back as Suspicion (4x12).Why exactly is Tony now taking a greater interest in who Ziva was talking to? Is this going to have a big impact on stuff?
The second answer is up to interpretation, opinion and the writers. Maybe they get together and make all us shippers happy. This could be downplayed or pushed to the forefront. Or nothing could happen between them () and this could be rarely referenced or often mentioned. It all comes down to the writers, the big event at the end of the season and what you and the other viewers consider a big impact.
Sorry about the long answers, but it's a complicated story and I'm slightly obsessed rolleyes.