Rachel is what you'd call a controllist.

She tells Kurt later that night. Of course she does. He's her best friend and she's been trying to work out this...thing with Noah since it started Sophomore year, in between Finn and Jesse. And he's happy for her, which is great. It's just...he's a little too happy. A little too loud.

And guess who he lives with?

She's at her locker the next day (she hasn't seen Noah yet. She hasn't looked. She knows he's usually late and she's painfully punctual, so it's pretty much a moot point.) She's not expecting Finn to approach her. And she's definitely not expecting to hear "Puck? Puck? Are you kidding me?"

"I'm not sure how it's any of your business, Finn."

"He’s bad for you."
 
"You don’t know what’s bad for me, do you?"
 
"C’mon, Rachel, I know you better than anyone."
 
"So you kept hurting me on purpose, then?"
 
"Rach-"
 
"No, Finn, stop. I won’t-…even if I wasn’t trying this...thing with Noah-"
 
"Rachel, wake up! He only wants what he can’t have!"
 
"And why can’t he have me, Finn? I don’t belong to you.  We're over, okay? We're done. Now, if you'll excuse me, I need to make sure I have all of my homework for the day."

"You know you do, Rachel. Come on, we need to talk about this..."