A/N: Sorry! I was busier than I expected this weekend, and couldn't get this up. Thanks to all my faithful reviewers, you guys are the best!

Disclaimer: Same as usual.

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The night of the engagement came quicker than either Ryan or Summer expected. The day before, they both sat and talked about what was to happen.

"Okay, so I walk in, and you walk in?" Ryan said, boring a hole into her with his eyes.

"Yep!" Summer declared, looking excited "Then, we spend a LOT of time together, like we're getting to know each other. THEN we leave together at the end." She said, hardly containing herself at the prospect of her brilliant plan.

Ryan smirked to himself. He knew what they all would think at the prospect of them leaving together. No, they hadn't 'done the deed' yet, but were heating up quickly. Maybe they would spend the beginning of the year like the others expected.

"Got it." He said, making a mental checklist. The two then proceeded to get ready.

The party, coincidentally, was being held in the ballroom of the Newport Hotel. Neither him or Summer had ran into Seth and Marissa since Ryan's little beach incident, but they knew that this time it would be inevitable that they did.

Ryan stepped out of the room in his tux, ready to go. His hair wasn't even messy, in its usual style, but combed neatly.

He was VERY pleasantly surprised when Summer walked out of the bathroom, ready to go.

She was wearing a gorgeous chiffon and silk sea green dress, which looked like it was out of a fairytale. The skirt billowed out, and had lines of silk ribbon. She was wearing the shoes that they had gotten a few weeks ago, and carrying a sparkling bag that looked like it was made of diamonds. Heck, it probably was made of diamonds. Her makeup was perfect, not that she needed much in the first place.

Summer noticed that Ryan's mouth had practically reached his feet.

"Do I look that bad?" She said, smiling. "Come on, let's go! We can do this!"

The two walked down to the ballroom as planned, from separate ends of the building. Ryan was immediately bombarded with people from The Newport Group, saying how wonderful of an architect he was, how famous, babbling on and on and on. He stuck around politely, answering all their questions.

Summer, however, was left with just one person to face.

Who was walking right towards her.

"Hi Sum! So glad you could make it! I thought you wouldn't want to come because we hadn't spoken, but I really wanted to see you! How are you?" Marissa babbled to Summer, unaware that the latter didn't really feel like talking to her now. Ever, for that matter.

Summer inspected her former best friend. God, she looked like all those Newpsies that they had always despised as kids. She bet a million bucks that Marissa didn't work at all, while Seth had started some company and was rolling in the dough so he could support her. It literally made her sick. That was one of the minor reasons she had left in the first place.

"Hi Coop!" Summer plastered a smile on her face, remembering that she wasn't supposed to know anything that had gone on in the past 5 years "This is so great! Although, I was kind of surprised to see Seth's name on the invite. Isn't that breaking the Golden Rule of best friends? Never date the guy that broke your best friend's heart? And whatever happened to Ryan?" Luckily, Marissa's IQ hadn't increased since they had last seen her, so she didn't catch the fact that Summer was trying to be catty.

"Oh, well that's a long story. You see..." She faltered off right as Summer felt a tap on her shoulder. Summer turned around to see Ryan, looking surprised and happy.

"Wow, is that Summer Roberts? I haven't seen you in forever! It's so great. Why don't we go somewhere else to catch up?" Marissa looked scared, and walked away. Right then, they went out of spy mode.

"How was she?" Ryan whispered.

"Ugh, horrible! She's a total Newpsie! And I bet Seth is the typical Newport Man now too! She was about to explain her side of the story of what happened between you two when you came. I guess I'll have to hear it later." Summer quietly exclaimed.

Ryan laughed. "Dance with me?" He asked, getting that adorable look on his face.

She pulled him out onto the dance floor when a slow song came on. She knew that they had to act like they just had met again for the first time in 7 years, but still felt a zing of heat when he took her in his arms. She noticed Seth and Marissa in a corner talking and staring at them, but she didn't care.

When the dance was over, he leaned over and whispered "See you later." Then, he said in a louder than normal voice "Wow, Summer, It was so great catching up with you! We should see each other in the city more often! I'll talk to you more later." With that, he walked away.

And she turned around to face the person she was dreading the most.

"Summer." He said, looking up at her.

"Gee, Seth, can't even be polite, can you? How could you do that to Ryan? He just told me about it. That's way low." She tried to be as nice as she could, but was failing. Miserably.

"Happy to see you too. And I guess we should explain. You see...err...it wasn't just in college. It was in high school too. Since the end of junior year. I thought we should clear the air to both you and Ryan before the wedding..." He was cut off by a shriek.

"WHAT?! You cheated...on ME?!? How DARE you! I AM AND WAS better off without you! YOU LOSER!" She slapped him, hard, across the cheek. She never had been a bad fighter in the first place, and at the moment she was better than ever. His face was red and raw. With that, she huffed away to go find Ryan, stomping away as hard as you can in Manolos.

It was too late.

She saw him angrily glaring at Marissa as she proceeded to tell him what Seth had told her just a few minutes ago. She stormed into the conversation, full speed ahead.

"Coop, how COULD you? You didn't only betray him, but me as well! That's horrible! Don't you have a conscience? Ryan, I believe we have more catching up to do about all of THIS!" With that, she pulled him into private.

"Summer, I thought you said we could do this. I mean, now I'm even more pissed off, but we agreed you would try and keep me level-headed, before I go punch the shit out of Seth!" Ryan frantically whispered.

"I know, but this isn't just about you and me helping. It's about both of us. This means war. As much as I'd like to believe it, the catty high schooler still lives on within me, and she's coming out!" Summer yelled quietly, trying not to be heard.

"Okay. I guess we should talk to both of them. Together. Not violating the plan though, we'll pretend we both just found out about all this stuff and talked a lot."

This time he did the dragging, back into the ballroom. He targeted where Seth and Marissa were standing, and went to talk to them.

"Look..." Marissa started, looking a bit ashamed.

"Save it, Coop. You didn't disobey the Golden Rule, but the Diamond Rule. You're not supposed to cheat on you're boyfriend with his brother, who just happens to be YOU'RE BEST FRIEND, or now complete EX best friend's boyfriend. No way is that cool. And Seth, all I can say is, how could you? I didn't much care when I got the invite, but you were cheating on me throughout almost our whole relationship? You betrayed Ryan AND Me. I swear, I WILL slap you again!" She made the motion, but Ryan grabbed her arm just in time. Then he turned to them.

"Look, I was GOING to apologize for my behavior at the beach, but now I find it justified. I'm going to stay calm this time, but that hurts. A lot. I will go to the wedding. But after that, I'm not sure that I ever want to speak to either of you ever again." He turned around and walked away. Summer followed.

The two walked up to their room, up separate routes. Downstairs, the party was heating up. There were shouts of "10...9...8...7...6...5...4...3...2...1...HAPPY NEW YEAR!"

Meanwhile, Summer and Ryan were having their own little party under the covers. Their very first.

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How was that? It took me a while to write! Sorry if they seemed a bit (or a lot) OOC, but they were kind of supposed to. I hope next one is up sooner!