- When Robin fears that Barney is cheating on her, she soon discovers that he is spending his evenings with Ted learning everything there is to know on how to date her
- Robin is still so surprised when she realizes that she and Barney are dating. She reconsiders her relationship with Barney when it seems that he really doesn't want to be in a relationship, and then makes a 180 degree turn being too attentive, which makes Robin believe he's cheating on her. By breaking into Barney's briefcase, Robin and Lily learn that Barney hasn't been cheating on her with another woman but that he has been going to night school. The class: Robin 101. The teacher: Professor Ted Mosby. Ted convinced Barney that he had to be attentive to Robin's needs to keep her, and who better than Ted to teach him what those needs are. Will Robin be flattered or offended? Meanwhile, Marshall says goodbye to his old friend Mabel... or so he thinks.—Huggo
- It all starts when Ted overhears Robin complaining to Lily about Barney. It seems Barney is having a hard time adjusting to being in a real relationship (he keeps climbing out the staircase at 4 am, He won't support her emotionally). Robin is frustrated and tells Lily that she might have to break up with Barney if things don't change.
Ted relays all of this to Barney who scoffs at the idea of being more sensitive. Even so, he does start shaping up and begins to look like the ideal boyfriend. However, Robin sees this sudden change in behavior, coupled with the fact that he claims to be working late but can't be found at the office, as signs that Barney is cheating on her. Robin is determined to find the truth and presents Lily Barney's briefcase which she breaks into in search of proof. There she finds a college notebook, in it is information about Robin. Marshall admits that the notebook is from a class that Barney is taking from Ted: Robin 101. Ted teaches him stuff like her age, her favorite hockey team, don't cry in front of her. Barney had attention deficit disorder as a kid and is easily distracted. Top 10 Robin facial expressions and their meanings: The hunger look (leading to weird laughter or falling asleep in strange places) or the rage: if you ever see that expression, just run and don't try to take a picture of it.
Meanwhile, Marshall found an old barrel while cleaning his stuff out of the storage space in the apartment building. The barrel, which he referred to as Mabel, served as his night-stand until Lily claimed to be allergic to barrel resin and which made him stop using it. He plans to leave it in the "Bermuda Triangle": the curb outside the building where he and Ted left things they wanted to give away. Items left on the curb would disappear almost instantly. However, Marshall is disappointed when no one seems to want the barrel.
Robin and Lily go through the notebook discovering a shocking amount of personal information about Robin including "surprising erogenous zones" (the Left knee) and how to deflect arguments with her. Although Ted did have to struggle to get through to the easily-distracted Barney, after dating Robin for a year, he is able to give Barney a wealth of information on her. If Robin says I Love You, she has already broken up with you. If she really loves you, she will say You are an Idiot. Other revelations include that Robin can be distracted by the topic of the Canucks' 2004 division title, proper gun cleaning (during which it is also revealed that she has an uncle whose thumbs were blown off), and emperor penguins. Never play the guess who game with her. Never cry, Never show a YouTube clip of an animal playing a musical instrument. It's also revealed that no amount of success will be enough for her without six simple words from her dad: "Robin, I'm proud of you eh.".. Get her butterscotch when she is PMSing.
Robin and Lily head down to Ted's classroom where Ted is holding the "Robin 101" classes. Robin angrily confronts the two about the violation of her privacy and how she thought Barney was cheating on her. She claims that Barney is cheating by taking classes from Ted. She also claims that half of the things Ted believes about her are wrong. She only pretended to be aroused by the Left knee as he wouldn't leave her alone. Robin angrily storms out.
Back at the bar, Ted apologizes to Robin for divulging so much personal information that was between the two of them. Calmed down, Robin admits that she is touched that Ted remembered so much from when they were dating and she forgives him. Ted points out how hard Barney has been working at keeping Robin.
Outside, Robin meets Barney where he instantly apologizes and offers to ditch the notebook, tossing it atop Mabel. He explains that he only did it because he was afraid she was going to dump him. She smiles, says "you're an idiot", and kisses him. Robin points out that they shouldn't leave the notebook lying around, as it contains a lot of personal information about her, but when they turn back to Mabel, they find it has disappeared. The barrel is still sitting on the curb.
Earlier, when Ted is showing Barney slides of Robin, a photo of the Flatiron building is somehow mixed in with the slides. In the final scene, the same thing happens in Ted's architecture class, only this time an embarrassing photo of Robin (she is shown drinking a beer while sitting on the toilet) is mixed in with photos of buildings
Contribute to this page
Suggest an edit or add missing content