Names : Pikkoro and Bejiita
Anime : Dragon Ball Z
Explain : This couple is rather subtle when compared to the others, but the connection is still there.

POINT 1
Aside from Gokuu, Pikkoro seems to be one of the only people who understand Bejiita's actions and the reasoning behind them. He knew before everyone that Bejiita meant to kill himself in order to defeat Buu. He even knew before Gokuu that Bejiita would NOT want to do the fusion dance.

POINT 2
They like Gokuu and Bejiita are always in competition with each other. They both always seem to notice the others power or how strong they've become. They both have this quiet understanding of each other. When Bejiita was about to kill himself he asked Pikkoro if he'd be able to see Gokuu in the afterlife. Now to everyone else Bejiita hates Gokuu, he says and acts the part often enough. But Pikkoro knew better. He didn't even seem shocked that Bejiita was upset about not seeing Gokuu. I think it's because he knows how he really feels and also that he can relate.

POINT 3
Although they don't seem to talk very much I think they trust each other a great deal. again before Bejiita tried to kill Buu he asked Pikkoro to take the kids and get away from here as fast as possible.

Bejiita: I'm counting on you Pikkoro...