"What do you want me to do, Sum? Just let her sit at the table with Ryan and Seth? And then who am I supposed to dance with?" Marissa sat on the bathroom counter and stared her best friend down. Summer was admonishing Marissa for being so nice to Krista, for even entertaining the idea that the other girl could be okay.

And Marissa was holding firm toher decision to treat all friends equally - even the ones she didn't know so well. If Krista wasSeth's friend, then she was Marissa's friend, too.She and Ryan had agreed to stay neutral for as long as these new players were in town.

"I don't know what I want," Summer admitted, leaning against one of the stall doors and crossing her arms. "I want everything to be easy. I just want it to be like it was when everything was easy." The pout on her face was vintage Summer, and the foot-stomp that followed was equally nostalgic.

"Look, Sum," Marissa started to dispense her advice when the bathroom door opened and Krista shut it soundly behind her. "Hey, Krista," Marissa smiled.

Krista offered a small wave and moved toward the mirror. "Hey, guys," she greeted, studying her reflection carefully. She wondered, for a split second, if Summer knew that her every eye roll was captured by the mirror for Krista to see. "Summer, I like that skirt," she said. When she arrived at Seth's house, he had warned her that he and his ex-girlfriend were now trying to be friends. She had promised not to cause unnecessary problems.

Summer huffed and crossed her arms over her chest. "I know what you're trying to do," she stated simply. Krista turned and leaned against the bathroom counter, her hands on her trim waist as she returned the glare that Summer was shooting her way. "It's nothing personal or anything, but I don't want to be your friend," she informed.

Krista shrugged. "Fine by me," she said with a sigh. "I'll be honest, I was just pretending to play nice to get in with Seth anyway."

With the scrunch of her nose, Summer shook her head. "You'd have to get Cohen totally drunk for him to ever hook up with you," she insisted.

With only the raise of her eyebrow and a slight smirk, Krista gave a nod. She wasn't rattled by Summer – only amused by the fact that she thought she was so tough. "The only thing I have to do to hook up with Cohen is convince him that you're hooking up with Kendrick."

Summer pushed off the wall and moved her hands to her waist, an incredulous look on her delicate features. "Wouldn't that make you the rebound?" Krista nodded. "And you're okay with that?"

Pushing off the counter, Krista tucked her hands into her pockets and gave a quick shrug of her shoulders. "I am okay with that. And thanks to your little pact, I think I can make it happen," she winked. "I have to thank you, Summer. I mean, if you hadn't been so focused on doing what was best for your "future," I'm sure you two would still be together, and I wouldn't stand a chance." She shook her head and reached for the bathroom door handle.

"What the hell does that mean?" Summer asked as the door closed behind Krista. She turned to Marissa. "I'm gonna kick her ass if she calls him "Cohen" one more time," she promised. "I have to thank you, Summer," the brunette mocked the other woman.

"I think I know what she means, Sum," Marissa said silently, her eyes averted to the floor to avoid the fire shooting out of Summer's. "Look, you're the one who broke up with him."

Summer felt her chest constricting. She didn't want to admit it – but she had been wrong. From the moment she said that they should see other people, she knew it wasn't true. She wanted to take the words back, but Seth was nodding in agreement with her and she got angry. She wanted him to assure her that they were going to be fine, that no distance or anything else was going to break them up. But he hadn't.

"Okay, look, Coop, I don't know what I'm supposed to do," she said finally, her arms falling helplessly to her sides. "I mean, I hardly had him when we were together. But I'm lost without him. I just don't know," she sighed, slinking against counter beside her friend.

"Sum, why'd you break up with him? Honestly?" Marissa asked.

She didn't want to say the words – they sounded dumb in her head, so she knew they would be bad out loud. But this was Coop – her best friend in the world – and she couldn't very well lie to her. With a heavy sigh, she leaned her full weight onto the marble counter top and ran her hands through her hair. "Because he was gonna break up with me soon enough. I mean, it was only a matter of time before he got all wicked, Berkley smart."

"Summer, you made the dean's list. You're not exactly ridin' the short bus, my friend," Marissa assured.

"I don't know, okay? I don't know what I was thinking," she sighed heavily. She could admit, to Coop, that she had made a mistake when she broke up with Seth. But it wouldn't go beyond this bathroom, beyond friends. She couldn't tell Cohen how she felt – they had a pact. And until he made the first move, she was not budging. "I have to go find Kendrick," she said under her breath, staring at the ground as she hurried out of the room.