[ Yes, he calls her Haru/Haru-chan. I only use them if the character uses it a lot -- like Haruhi calling Kyoya, Tamaki, Mori, and Honey -senpai, but addressing Hikaru or Kaoru, she would just call them their name with no suffix. XD ]
-- Haruhi Fujioka --
Haruhi was about to duck back out before anyone saw her, but was greeted by an enthusiastic 'Haru!', and laughed a little bit. "Hey, Honey-senpai," She said, stooping over to hug the smaller male back. "What're you up to?" She asked, straightening back up and brushing her blue uniform top off to come into the room since she'd already been spotted, then placed her bag down by a nearby table. She was still hoping to get some homework done before the Host Club was open, or at least until Tamaki showed up. Haruhi looked over to where Honey had been sitting before and saw the cake, and concluded already what he had been doing before she got here with a chuckle. Honey was Honey, all right.