Exerpt from the later chapters:
"I can be your hero baby, I can kiss away the pain I will stand by you forever, you can take my breath away..." Haruhi sang absently as she swept the floors of the Host Club. She didn't notice that the twins had wondered over and heard her singing. Stunned the twins stayed quiet and out of site as they listened to her singing. Honey-senpai noticed this and went over to ask what they where up to. "HA-" he started before the twins simultaneously turned and shushed him. Lowering his voice he asked what they where doing, while climbing onto Mori-senpai's shoulders. "Listen" was all they said their eyes glued to Haruhi as she switched songs. "...and every time we touch I get this feeling and every time we kiss I reach for the sky. Can't you feel my heart beat fast I want this to last need you by my side..."
Mesmerized the four of them stood there listening as she sang. Silently following as she continued to clean. "What are they doing? Following Haruhi around like lost puppies. " Tamaki-senpai asked Kyoya who was currently writing on his black book. Glancing up Kyoya shrugged "why don't you ask them yourself?" He said returming to his book. "AHH OF COURSE OF COURSE" walking over to them he called out "HO-" the four of them cut him off with a glare Honey and the twins turned back to watch Haruhi. While Mori-senpai simply said "listen", mouth agap Tamaki and Kyoya turned towards the still singing Haruhi, but she started yet another song. " ... and I never wanna say goodbye, but girl you makenit hard to be faithful...... with the lips of an angel" As she sang the last note she turned towards them and grinned. What she said next stunned everyone.
"I love you my host club boys!"