To dine alone means selfish parsimony. In a large company, luxurious lifestyle in household expenses. Dine with a lord or noblemen, means vain expectations.
Dream dictionary: Dine dream meanings
If alone, then it means affective isolation and if with company, then it means happiness at home. Inviting someone indicates jealousy. Seeing your partner eat dinner with another person indicates infidelity. Seeing a relative dine alone indicates health difficulties.
…To eat grapes in your dream, you will be hardened with many cares | but if you only see them hanging in profuseness among the leaves, you will soon attain to eminent positions and will be able to impart happiness to others. For a young woman, this dream is one of bright promise. She will have her most ardent wish gratified. Dreaming of riding on horseback and passing musca-dine bushes and gathering and eating some of its fruit, denotes profitable employment and the realization of great desires. If there arises in your mind a question of the poisonous quality of the fruit you are eating, there will come doubts and fears of success, but they will gradually cease to worry you….