George is doing the dishes when Lynne enters the kitchen and tells him she is off to her old school class reunion and asks how she looks. George says she looks in a class of her own.
Now we know that George and Lynne did not meet at school. Usually these reunions involve being allowed to take partners but not in this case. Lynne is going alone and has dressed up to try and impress her old schoolmates as they all said she'd amount to nothing.
George and Lynne have obviously neglected the dishes over the last few days. Instead of washing up after each meal or before bed, they have let the dishes stack up. We can only hope that they at least rinsed them, otherwise their kitchen will be a hive for germs. George saw a line of ants so thought it was time to wash up.
Lynne is really asking how she looks because the upstairs is as bad as the kitchen. Soiled clothes have been strewn everywhere and this dress is literally the only clean thing she could find. She was hoping to wear something a little more businesslike, but her trouser suit is covered in yoghurt.