You insisted over and over that the kiss meant nothing. That your shared moment with Sam's older brother had meant nothing. But even if your words were true, it didn't hurt Sam any less.

You and Sam had been engaged. But... so many things had happened. There had been so much fighting. Sam said you both needed a break. From each other.

You thought that meant he was breaking up with you. That it was over. You were heartbroken. And in your heartache, you made a mistake that would come back to bite you in the ass. You kissed Dean. You had been drunk and lonely... and so had Dean. So you kissed him. It went no further than that before you immediately pulled away...

And a week later, when Sam said he wanted to get back together? You said yes. Immediately... but you didn't tell him about the kiss. Neither did Dean.

So, how did Sam find out? Ruby. He'd been working with her for some time in secret, and she knew. She told Sam.

Now, here you were as he confronted you in the empty motel room.

"What? I don't even know what you're talking about." You muttered quickly.