In Season 1 Episode 13: "Investigative Journalism" of Community, Buddy manages to include himself in the study group, having been sat unnoticed in the Spanish class all year.
He later (after being kicked out of the study group and being allowed back in) decides to join the "cool group". Considering that Starburns was also in that group, yet was seen to still be in the same Spanish class as the study group, was there any explanation as to why Buddy was no longer seen in the class?
Obviously out-of-universe, it would have been expensive to hire Jack Black to sit at the back of the class with no lines, so he was obviously just no longer included in the show, but was there ever an in-universe explanation as to why he was never seen again?
Did he simply go back to being unnoticed in the back of the class? Or did he drop out of the Spanish class/Greendale?