The school bell finally rang. The Glee club said goodbye to their teacher and went out for lunch. Sam quickly gathered his things and when he turned around, Quinn was already at the door.

"Quinn, wait!" he called after her but she just kept walking, maybe she couldn't hear him. Sam just nearly caught up with her and suddenly he felt someone grab his hand and turn him around. In front of him was a girl with the cheerleader uniform. Sam didn't know who she was, they had never talked before.

"Hi, Sam," the girl smiled like she had known him forever.

"Um…can I help you?" Sam asked, confused.

"I just want to talk to you. My name is Kristen. Nice to meet you," Kristen said as she gave him her hand. Sam was still very confused but he shook her hand anyway. He didn't know her why she was talking to him.

"I'm Sam," he said.

The girl gave him a smile, "I already know. You're popular."

"I am?" Sam raised his eyebrow. "I'm just a new kid. It's Finn who is…"

"You mean used to be? He doesn't matter anymore. You're the new favorite," Kristen chuckled and put her finger against his chest. Sam just smiled uncomfortably and moved her finger away.

Quinn was walking down the school hall and she swore that she could hear someone calling her name. The cheerio quickly turned around but there was nobody. Instead, she saw Sam, her Sam, talking to Kristen! They were standing so close to each other and her finger was against his chest. Just looking at that made her angry. Kristen said something else to Sam and then gave him a kiss on the cheek. Quinn bit her lip, trying not to run over there and kill that girl. She couldn't explain herself why she was feeling that way when Sam was with Kristen or any other girl. She was jealous, but she wouldn't admit it, instead, she told herself that she was only protecting Sam, her best friend, and there's nothing wrong with that.

As Kristen just left, Quinn angrily walked over Sam. He smiled when he saw her, "hey, Q. I was looking for you and –"

"What were you and Kristen talking about?" Quinn asked, trying not to look like she's going to kill someone.

"Nothing. She's a very nice girl. She gave me her number," Sam smiled. He answered so calmly and that was driving her crazy.

"Are you going to call her?" she asked.

"Yeah, it would be rude if…Hey, where are you going!" Sam said, grabbing Quinn by the arm when she was just about to walk away.

"I'm going for lunch!" Quinn said as she quickly pulled her arm away from him. She was so mad at Kristen and she couldn't do anything about it so she blamed Sam everything.

"I have something really important to tell you," Sam said, looking at her in the eyes. He knew that she couldn't say no when he gave her that look.

"Talk," Quinn said, crossing her arms.

"Okay…it's very hard to say but…I think Finn…he's cheating on you with Rachel."

"What?" Quinn said, nearly yelling.

"I saw them talking and they said…"

"He said he's cheating on me?"

Sam shook his head, "no, but they looked like they were up to something and they didn't want anyone to know."

"Finn doesn't cheat. Maybe he's not a very good person but he doesn't cheat," Quinn narrowed her eyes, "you doesn't know anything about him!"

Sam was very surprised at her attitude. But what he didn't know was, she wasn't mad at what he had said, she was mad at something else and she put it all on him.

"You don't trust me? I'm your best friend."

"Finn is my boyfriend. I just met you after 10 years. I barely know you. How can I trust you more than him?"

Sam looked at her with his mouth wide opened and she realized what she had said was wrong, but she couldn't take it back.

"I…I'm sorry…I didn't mean –"

Sam just nodded his head understanding and then turned and walked away. She could see the pain in his eyes. She wanted to follow him and apologize but she didn't. She couldn't move. She just stood there and looked at him walking away.

Sam and Quinn barely talked to each other from that day. He started to sit so far away from her at lunch. He tried to avoid her in Glee club, in the hall. He didn't come to her cheerio practices or walk home with her like they usually did. It hurt Quinn a lot. She had tried to apologize a hundred times, he had told her that he hadn't been mad at her but by the way he was acting, she knew that he was. And now, he was sitting at another lunch table far away from her with the Glee club and she was sitting with her popular friends.

"Quinn, come back to Earth, please?"

The blonde quickly turned to the Latina who was sitting next to her, "what? What?"

"What were you thinking, Q? You didn't even pay attention to us," Finn chuckled and looked at Santana and Brittany.

"Erm…I wasn't thinking of anything," Quinn faked a smile and looked down at her food tray.

"So, are you going to my party tonight?" Santana asked, smiling.

"You know I can't. I have history test tomorrow," Quinn shook her head.

"Come on! Everyone in this school is going, you can't stay at home and study!" Finn rolled his eyes, "enjoy your life, babe."

"I don't know, maybe I will or maybe I won't," Quinn shrugged and Santana let out a groan, "you are no fun!"

The head cheerio didn't say anything, she just smiled at her friend and looked over at Sam's table. Kristen had joined the Glee clubbers at the table and she was sitting next to Sam. She said something to him and he laughed. If Quinn was there she wouldn't let that happen, but too bad, she had ruined everything.