It's a Living S02E05 - Second Time Around, Almost

Jan's ex-husband Lloyd shows up at Above The Top one night during dinner service, which causes some mixed feelings for her, especially when the both of them start going out together and have a great time on their dates.  Meanwhile, Dot takes care of an elderly dog that she is to appear with for a dog food commercial that she auditioned for, only to replace it with another dog after the original dog died in the bathroom of the waitress lounge at age 15 years (105 in human years).