The Prestidigitation Approximation - S4-E18
Question: Why is Penny looking so happy when she sees Leonard and Priya in the restaurant and going into the restaurant and looking like she doesn't plan to leave and eats their food? Wouldn't Penny of all people know not to disturb someone during a date?
Chosen answer: She's having a Leonard moment and not fully grasping the situation. She doesn't see her ex boyfriend and his new girlfriend having a romantic dinner, but two of her friends having a meal. Whether it was conscious or unconsciously is anyone's guess.