This is an interesting area I wish the manga explored more -- Haruka with Usagi and Mamoru with Michiru. Not that it really "went" anywhere with Mamoru and Michiru...it was just Usagi's jealous-girlfriend-overprotectiveness taking over. Haruka and Usagi, on the other hand, were getting somewhere and it was pretty interesting. Ugh, but right when it was getting good in vol. 8, Mamoru and Usagi talked it over and made up instantly. The end.
I know Haruka's a female and just teased the other girls, but she makes such a great guy character! I really loved the flirtiness and thought she was genuinely interested in Usagi in the manga. Too bad Mamoru and Usagi have to be so perfect :/
Anyywaysss this was my attempt at making an anime version of the scenes that got Mamoru and Usagi jealous. ^_^ Too bad Mamoru didn't get to see when Haruka kissed Usagi...bet he wouldn't have been so forgiving then.