The Rough with the Smooth - S1.E5

To reward head mistress Harriet for giving Stanley extra work to get him into grammar school, Harvey Harriet to an upmarket restaurant but feels out of his depth and walks out.

He is almost reconciled with Rita after beating up one of her fancy men who has assaulted her, but comes to see that she was just using him and returns to his mother's where Harriet brings him the food from the restaurant for a late night supper together.