Probably saw herself with her husband in Nobu specifically, that's why she remarked about the place. It wouldn'tbe strange to see a reflection, but to see the place change would be strange.
In conclusion, she saw a date set in her favorite place.
Because unlike her husband who was satisfied with just being together, she has more imagination on what could make her the happiest at that moment. (I myself think that eating at Nobu with my partner is better than being at work with my partner.)