Ranma, You Are Such A Jerk!

Ranma, You Are Such A Jerk! (乱馬なんか大キライ!) is the 23rd episode of the fourth season, Outta Control, and the 87th overall episode.

Plot
Akane Tendo cooks up a suprise meal for the Saotomes' anniversary at their household. However, Ranma wrecks the meal, and Akane was so mad, she began to call him a jerk, and run away. The rest of the gang (sans Kasumi) starts looking for her for the rest of the night. But when they found her, she was actually up on the roof.

Trivia

 * Even though Akane says that this is the Saotomes' two year anniversary of living with the Tendos, in the previous episode Kuno was still claiming to be 17 years old.  He was 17 back when Ranma first moved in back in season 1.