Rachel Berry was furious. How dare he – no, she couldn't even think it. She was glad, for once, that Blaine boarded at Dalton – she didn't think she could've looked her brother in the eye after what she'd seen. She felt so, so sorry for him. After all that he'd been through, this was definitely not something he deserved.

She'd barely remembered to close and lock her car when she arrived at school – if she forgot, some football players would probably take advantage of her forgetfulness – and when she arrived inside, she scanned the halls expertly in search for the victim of her wrath. She had all but pressured Finn into not saying anything, but for a moment, she feared that he might've let something slip after all. It didn't matter anyway; as soon as Sam walked by her, wearing that jacket, Rachel's anger doubled – they even dared to flaunt their affair in front of the entire school? – and she stormed through the halls towards where she knew Kurt's locker was.

There he was, the lying, cheating bastard. He didn't deserve someone as wonderful as Blaine as his boyfriend.

Kurt didn't even look up from the book he was reading as she approached. Choosing to keep her anger under wraps for now, she simply said, "Stop it."

Still, Kurt didn't even spare her a glance. "Stop what?" he asked, and Rachel's blood began boiling again.

"You're cheating on Blaine with Sam," she accused him. That caught his attention. "I thought I knew you, Kurt, and I thought both Blaine and I could trust you, but obviously, we can't. When were you planning on telling Blaine about the affair you're having? How long has this been going on?"

He just stared at her incredulously. "What on earth are you talking about, Rachel?"

"I knew it!" she exclaimed, and rather loudly, too, if the turned heads in the hallway were any indication. "You're not even denying it!"

"Well, maybe that's because you have absolutely no idea what you're talking about, no grounds whatsoever to base your accusations on, and no right to interfere with our relationship." He seemed both annoyed and unimpressed, and in Kurt, that could be a dangerous combination.

"We saw you and Sam outside that motel," she told him harshly. "You were incredibly touchy-feely, weren't you?"

Kurt shot her a pointed look. "Alright, so you're saying that every time you touch someone, you're having some kind of an affair with them? Because that's the only thing I'm getting from this. Besides, Rachel, Sam's straight, in case you hadn't noticed him dating both Quinn and Santana."

She scoffed at him. "You were outside a motel, Kurt. It's pretty clear what goes on in those, isn't it? Besides, Kurt, Blaine is my brother, and I love him. I care about him, and I'm not going to let you break his heart to pieces because you're messing around with a supposedly straight guy in a motel. God, Kurt, could you get any tackier?"

"Says the girl who's obsessed with animal sweaters," he muttered. "Look, Rachel, I'm not 'messing around' with Sam, or however you want to put it. I'm not cheating on Blaine, nor do I plan to."

"Then what were you doing there?" she asked, still angry.

"I could ask you the same question," he retorted. "And I can't tell you what was going on. It's none of your business."

She snorted. "Yeah, that's very believable, Kurt. It's easy for you to do what you're doing while I'm the one who's going to have to clean up the mess you'll undoubtedly leave behind."

"For the last time, Rachel, I'm not cheating on Blaine." Now, Rachel wasn't the only angry one anymore. "And I think you're just about the last person who's allowed to lecture me on that particular subject when you're the one who broke Finn's heart earlier this year. Guess who got to help him out of his misery? That's right, me."

"You and Finn aren't even related by blood," she countered.

"It's still the same thing," Kurt insisted. "Actually, no, it's not, because you cheated on Finn, and I've never cheated on Blaine."

With that, he slammed his locker shut and walked away.

o-o-o-o-o

"Blaine!" Rachel called out. She'd only been at Dalton a handful of times, but of course, Blaine had shown her the choir room during one of those visits. She stormed past gaping students and classrooms of all kinds. "Blaine!" she yelled again, if only to announce her imminent arrival.

The doors to the Warblers' rehearsal room flew open the moment she was about to burst through them, and she almost collided with a Warbler she'd never bothered to learn the name of. She quickly located Blaine, who seemed to be shrinking away into the couch and this close to hiding behind the boy sitting next to him.

"Blaine," she repeated again, this time in a somewhat calmer voice.

"What are you doing here, Rachel?" Blaine asked, sounding somewhat exasperated… and, come to think of it, a little embarrassed as well. Rachel couldn't think of any reason why.

"I need to talk to you," she informed him. "Right this instant. It's an emergency." As his eyes grew wide and panicking, she hastily added, "Our dads are fine, don't worry."

"Then what is it?" he asked, clearly not intent on standing up and speaking to her alone like she'd hoped he would. Very well then – she'd just tell him in front of his – and Kurt's – friends.

"It's Kurt," she said, and as she'd expected, the other boys muttered quietly for a moment when the familiar name was mentioned. "He's cheating on you with Sam."

The boys were dead silent now, all staring at Blaine to see how he would take the news. "What?" he asked, sounding shocked. "Rachel – I know that Kurt would never cheat on me, and I wouldn't cheat on him either. Besides, Sam's straight."

She huffed. Why did everyone keep pointing out that minor little detail? "Apparently not, otherwise the two of them wouldn't be coming out of a motel at night. Something definitely went down there."

Blaine's face was unreadable. "I appreciate your concern, Rach, really, I do. But that does seem like a harsh accusation, don't you think? Especially since you don't have any real proof. And Kurt's not like that – as I just said, he wouldn't cheat on me, and besides that, it's not like him to go fool around with someone – a straight guy – in a motel room. Kurt's not like that."

"I've known him for longer than you have," Rachel reminded him. Sitting down next to him, she took his hand and squeezed is. "Listen, Blaine, I know that this may be difficult to hear and to process, but I know I'm right. Sixth sense, remember?"

Blaine groaned – he actually groaned. "You know what I think of your so-called sixth sense, Rach. While it may be true that you've known him for a longer time, I daresay I've gotten to know him much better in the admittedly short period of time we've spent together than you have in the past three years."

She looked at him sadly. He seemed very determined and he would probably never believe her. "I just don't want your heart to get broken," she told him earnestly. "I know the feeling, and it's awful. When Finn broke up with me, I didn't think I'd ever be happy again and – "

"I know," Blaine interrupted her, and only now did Rachel notice that the other Warblers had quietly left the room. "And I'll talk to Kurt about this. But this is my relationship, Rachel, not yours. I know you're just trying to help, but I almost entirely sure that you're making a big deal out of nothing and probably ruining your friendship with Kurt in the process."

"That she is," a voice came from the doorway, and a cross looking Kurt walked into the room. Rachel narrowed her eyes at him almost instinctively as he bent down to kiss Blaine in a greeting. "Can we talk?" he asked his boyfriend, sending Rachel a glare in return. "We can drive somewhere, so at least Rachel won't try to eavesdrop."

Blaine rolled his eyes. "Be nice, you two," he admonished them both, and Rachel was about to protest – she hadn't said anything to Kurt yet – when she realised that Blaine must've figured out that they'd discussed this issue already before coming to him.

As the two boys left the room, Rachel was left with virtually no choice but to follow them out of the school and drive home. While she was definitely curious about how their talk would play out, there was no way she could follow them and try to eavesdrop without being noticed. She just hoped that, whatever was going on, they would manage to work things out, for her little brother's – and, fine, for her best friend's as well – sake. She didn't think she'd ever seen him as happy as he was since he'd met Kurt. And, coincidentally, the same thing went for Kurt.

She sighed. Maybe she had been stupid to assume Kurt was cheating on Blaine.