Threes Company - Season 7

Terri’s seeing a dentist but wants to break up with him but can’t seem to be able to do it. Jack has a toothache so Terri arranges for the guy she’s seeing to see Jack but he’s so terrified. Jack goes to see him and he tells Jack that he has to come back in a week for his treatment which is drilling. But just before his appointment, Terri with help from Janet dumps him and when he sees Jack in her place he assumes it’s because of him. And Jack is unaware of what happened and goes for his appointment.