Charlie and Sarah talk before heading off to bed but Sarah wants to make a call to an old friend but Rex just knows she needs a bit of comfort and stays with her. end scene from 510 TV SHOW: Hudson & Rex season 5 (city tv)
shes an old friend who Sarah lost contact with but realized she should call her after yrs of not talking to her bc her friend had a drug addiction and hit close to home with the case they were working on.