T. J. Hooker S02E13

As Hooker and Romano pursue a pair of thieves who have stolen a batch of valuable new furs, Hooker rescues the robbers' hostage - a model who turns out to be an ex-girlfriend of Romano's. Brought back together by the incident, Romano and the girl become close, and Romano quickly develops deep feelings her. But unbeknown to him, she is actually involved with the thieves, and is giving them information that she's extracting from Romano to help them plan their next heist.