Boy Meets World S06 E17 Resurrection

"His older brother likes girls. His younger sister likes dolls. His parents like rules. And he'd like to know where he fits in."

While everyone anxiously awaits news about newly born Joshua Matthews, Cory's continued self-absorption alienates Topanga, who now considers herself a member of the Matthews family. Even Eric's little friend Tommy views Joshua as his new "brother." It's only when Shawn returns and is accepted by the elder Matthews as "family" does Cory realize where his true values lie.