Isaac got very upset at Cory for wailing Topanga's name as he stewed over her and Shawn's movie kiss. He told Cory to shut up, and Cory refused, demanding a fight because he was so tormented. Isaac bust down the door, and Cory suddenly felt sheepish.
Later on, after seeing the tape with Shawn and Topanga's kiss, Isaac was crying over lost love with Cory, hugging him closely. After Cory cried, "Topanga!" Isaac wailed, "Fred!" revealing that Isaac was gay. Cory suddenly felt less comfortable with their hugging.