Haruka in the manga seriously has a thing for usagi: and i ain't just talking about your normal flirting: she kissed usagi once, almost twice, if mamoru hadn't shown up.
In the anime,when minako and usagi are chasing after her, and obivously ask wether or not she and Michiru are involved, or weather, they have a chance at her, she laughs, but never once tells them that she's a girl
She flirts like hell and is an attention hound, not to mention is quite popular with the ladies.
she sort of marks usagi as her own property, in the end her romantical attraction for usagi fizzles away, and is replaced by somthing more of a possiesive sister type love.
Now for her relationship with Michiru: she has kissed Michiru in the manga: and she's always with her, no matter what
They take care of each other, live with each other, have kissed each other, make sexual comments to each other, I for one think they are in love.
