Abed gets the idea after marathoning 2 seasons of Orange is the New Black.
"Jeff, what's your definition of love?", he asks moving the camera uncomfortably close to his face.
"I don't have one."
"Everyone else contributed."
"Of course they did."
"A half hour video is a course requirement. If I don't finish, I'll fail and then Britta and Annie and Shirley and Troy will lecture you for weeks. You'll want to do this"
"Fine. I guess, at its heart…" Abed smiles and points his finger at Jeff for his involuntary pun.
"Haha. At its heart, love is about spending your life with someone. You're almost always in the mood to hang out with them, and even when they annoy the hell out of you, in a way you're still glad they're there." Jeff nods with an air of finality.
"Jeff" says Abed seriously, "I need to fill half an hour with these."
"Uh…you feel understood and you hope you understand them too. You have a feeling like no part of you is off limits or too dark or too personal. You care about them even if you don't always show it, and weirdly, you're willing to punch someone in the mouth for the same insults that came out of yours. You simultaneously feel comfortable and a little bit nervous whenever they're around. It's bizarre. And frustrating" Jeff stops and Abed gestures for him to go on.
"Really? Are the study group the only people who agreed to this? Is that why I have to soliloquise?" Abed nods slightly. "Well…I guess some of the cheesy clichés are true too. They always look amazing, even when they just woke up and there's toothpaste running down their chin." Daydreaming for a moment, he adds "Or mustard". Then he looks panicked for a moment "or um…other condiments. Hypothetically speaking, of course."
When Abed shows the study group, there is an uncomfortable silence. Annie looks disappointed and a little confused, and Britta looks like she's in shock. No one speaks for a few seconds afterwards.
"Jeffrey", Shirley says, aiming to defuse the tension, "I'm flattered, but I'm married." Jeff smiles at her in gratitude and Annie's frown lightens as she giggles a little. Britta still looks like she doesn't know what to think.
"So you're in love with Britta." Shirley says, when they walk to their next class together.
"What? No-I"
"Wasn't a question."
"…Was it that obvious?"
"Oh nooo, In fact, it was too cryptic, you probably should have added something about how love means offering to catsit and going to dance recitals."
"A simple yes would have sufficed."
Britta runs out a few seconds later while Shirley hurries away to leave them alone.
"Just so you know," he starts, "I bulshitted that entire speech."
"Uh-huh," she says, stepping towards him. She does not look convinced.
"I had to rely on my knowledge of movie clichés."
"Right. That old mustard-faced romantic lead cliche" She says, a teasing smile on her face.
He hesitates. She doesn't look annoyed or concerned. She looks like she's trying to hide how happy she is.
"Or maybe I just like you," he says, hopefully.
She grins, wraps her arms around his shoulders and pulls him into a kiss, lightly pushing him against the lockers.
"Get a room!" yells Leonard as he walks past.
Jeff does exactly that as he pulls Britta into the nearest empty classroom.