Can Anyone Explain S1 E1 with Feeny Cooking the Salad?

When Cory sees Feeny from his treehouse cooking dinner, he sees Feeny pick up the phone and then hang up and then Feeny starts cleaning off the table as if his date canceled on him.

The next day in school Feeny is talking to Cory about Romeo & Juliet and the power of love and he says, "Some people know the power of love....and prepare salads." This implies he had a date cancel on him.

Then later in the episode, Feeny asks out a teacher and says, "I made a salad for my sister the other night but she had to cancel at the last minute." Cory looks all confused and Feeny goes, "Confused Mr Matthews?" and Cory says "Yes I am sir" and Feeny says, "As it should be."

My question is, did Feeny prepare salad for his sister or a date? And if it was his sister, why did he relate it to love with the Romeo & Juliet play?

Here's the episode in case anyone wants to see:

https://www.youtube.com/watch?v=XaCMAaT4lLE