The New Addams Family (1998)

S01E08 Morticia, the Matchmaker

Cousin Melancholia arrives at the Addams family home in a gloomy state after her fiancé abruptly leaves her. The family attempts to find her a new partner, but their efforts yield little success: the mailman speeds away, Lurch refuses to participate, Fester only has eyes for criminals, and Thing literally gives it a hand. Ultimately, Ralph Harvey, who is reluctantly trying to salvage his law firm's relationship with the Addamses, gets pressured into dating and becoming engaged to Melancholia, despite his clear hesitations.