Ah yes, whatever happened to Frieda, Jane and Peter's long lost sister. Me and my friends used to speculate about that. Even had an idea on doing a short film documentary entitled "In Search of Frieda Fonda". The kicker was the possibility that she ended up as some itinerant bus preacher, and if we ever did that movie and found her, we'd have to end it with Frieda giving a five minute talk about the joys of having found god and religion in her life. 
But seriously, whatever happened to her? Even Google is silent.
I never let a mystery go unsolved, even if it takes me over a year:
Frieda married a foreigner. She went back to school, got her degree, and now has a very successful dental practice in New Jersey.
She last visited the Philippines about two years ago. But her "Body Language" figure was allegedly a lot more full.
