"A fascinating Friend" is episode 26b of the French-Italian animated TV series Peanuts based on the comic strip of the same name by Charles M. Schulz. It first aired on Boomerang in the United States on October 4, 2016.
Plot
Linus gets called mister by Lydia and feels old. Lydia wants Linus to treat her for Valentine's Day; Linus asks for Lydia's address.
Peanuts - A Fascinating Friend