Do they ever show The Hufnagels??

Giselle was the Hufnagels' cousin from Wichita. She was in town to work as a demonstrator at the small-appliance convention. Mr. Belvedere asked her out because he was trying to push away his girlfriend Louise. You probably remember the next part. Louise had invited Mr. B to go away for the weekend, and he accepted, but later he had second thoughts and felt like their relationship was moving too quickly. He thought if Louise discovered he was going out with Giselle, Louise would get upset and break up with him. They got into an argument but then talked honestly about how they were feeling, and Mr. B ended up proposing.