Conversation so far:
what did Sam Kinison do in his personal life?
Kinison acquired much of his material from his difficult first two marriages
who did Kinison marry?
his two marriages were to Patricia Adkins (1975–1980) and Terry Marze (1981–1989).
did Kinison divorce Adkins or Marze?
He divorced both Terry and Patricia

Question: why did they divorce?
Self-contained rewrite: why did Kinison divorce Adkins or Marze?