Pinkie snuck around Ponyville as Paint flew to a café. She then saw Paint going towards a table with a stallion with a brown mane with a blue streak and a blue coat sat at. Pinkie got a table close by to listen in on the conversation.
"I'm so glad you moved here. I wish I knew Rainbow lived here as well, that would've saved you plenty of years." Said the stallion. "Don't worry about it. I know how busy you are. Plus, it was kinda fun traveling the world, going new places and meeting new ponies." Paint said.
Pinkie called the waiter over, and began whispering in his ear. "Listen, I'm on an important business. See the teal pegasus with the blue pegasus?" The waiter nodded as he looked over. "I need you to get that stallion's name. Don't leave until you do!"
"Yes ma'am. You will get the information you need." Said the waiter as he walked over.
"Well, that was easy." Pinkie said to herself as she began eating, looking over once in a while.
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"Sir, my supervisor has asked me to take a random customer survey. Please just fill this paper out. There isn't too much on there." The waiter gave the stallion the paper.
After he wrote it down, the waiter left as he and Paint carried on with whatever they talked about it. "Here you go, ma'am."
Pinkie took the paper and looked it over. She finished her meal and left without Paint or the stallion noticing.
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Rainbow flew around in the castle with an annoyed face. "I don't get it, what is SO important that she would just leave?"
Applejack rolled her eyes. "Calm down, Rainbow. You sound clingy."
The others nodded in agreement as Pinkie bursts through the doors into the throne room. "I...got....everything....you....need to know!" She panted as she held the paper up.
Rainbow snatched it as Pinkie caught her breath and continued. "Paint was there with this stallion, they met before, and that's everything about him!"
Rainbow read the fake survey. "So his name is Blue Streak, he lived in Fillydelphia, moved here about a year ago, and has been with--" Rainbow pauses. "--Paint? For two years? And she never told me?!"
She had an angry look on her face as she threw the paper down. She sat in her chair as Rarity picked the paper up and looked over it. "Rainbow, darling, I'm sure that she was going to tell you soon. You two JUST met, for crying out loud!"
Rainbow rolled her eyes. "We spent all night talking to each other, she should've told me! Plus, if she was going to tell me, why would she act all suspicious earlier?! What kind of sister does that?!" She flew away as Paint walked in, looking at Rainbow. "Um, Rainbow? What's wro--"
Rainbow cut Paint off. "I'll tell you what's wrong! My own sister lets me believe that I can trust her when she keeps the biggest secret of all!" She yelled as she flew off.
Paint sat there with wide eyes. "She knows about me and Blue Streak?" The remaining friends nodded. "No! I was going to tell her last night but it slipped my mind!" She groaned as Fluttershy flew over. "I'm sure if you apologize, she would forgive you!"
Paint shook her head sadly. "I know Rainbow enough to know she's more stubborn than a rock. She doesn't easily forgive."
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At Rainbow's home. Rainbow was ranting to tank.
".... And then I find out she has a coltfriend, and NEVER EVEN BOTHERED TO TELL ME!" Tank nodded slowly as he sat through the rant. No, he wasn't listening. He just wanted this to end soon. "Come on, Tank. It's getting late, and I'm not in the mood to pull an all nighter!" She picked up tank and she flew to her room.