The couple separate due to supernatural circumstances at the end of the fifth season , and later reunite in the sixth ; the final episode of '' Charmed '' shows them to have a daughter , many grandchildren , and grow old together .
The couple separate due to supernatural circumstances at the end of the fifth season , where Piper takes a brief love interest in with a firefighter . 
 In the final episode of '' Charmed '' it shows them to have a daughter , many grandchildren , and grow old together .