Original sentence: In later episodes the couple became the more formulaic smart one/stupid one, a Cosmo often comes off as oblivious to others' feelings and safety, and he often undermines his wife's attempts to protect Timmy from his own naïve and potentially dangerous wishes (however A
Edited sentence: Cosmo often comes off as oblivious to others' feelings and safety, and he often undermines his wife's attempts to protect Timmy from his own naïve and potentially dangerous wishes (however A.In later episodes the couple became the more formulaic smart one/stupid one, and lost much of their charm and originality