More specific then the stuff you told me about Britta? Troy and Britta were both invited to attend a study group for a Spanish class they were taking. Although it was revealed to be a sham, the group that gathered for the meeting decided to form a real study group.
Throughout the semester, Troy and Britta had very little interaction despite being in the same group. This was due to Troy's budding bromance with Abed and Britta's flirtatious relationship with Jeff took up much of their time. Not long after Winter break, Troy and Britta found out they were both secretly taking dance classes. She was learning how to tap dance while Troy was taking a modern dance class to improve his coordination for football.
Britta and Troy agreed that they should tell the others but he backed out at the last minute unwilling to face their ridicule. Britta expressed her disappointment at his actions but Troy ultimately did come through for her. When she froze during her dance recital, Troy jumped on stage and helped her through it. Together they improvised a sensual dance which won over the crowd. They manipulated Troy into trying to hook up with Annie but he was unsuccessful.
The fallout from their machinations led to a conflict later during a study group meeting. Jeff pointed out that relationships in the group could become complicated since they all could view each other as romantic prospects.
Troy and Britta regarded each other briefly considering Jeff's words. Later at the Greendale Family Day event, Britta tried to encourage Troy to be nicer to when his cantankerous grandmother Nana Barnes came for a visit. Britta ignored Troy's claims that she was a monster and ended up offending Nana Barnes while trying to introduce herself. To make up for it Britta agreed to be reprimanded with a switch and after receiving her punishment she admitted to Troy that he was right.
