Conversation so far:
what did Sam Kinison do in Sam Kinison's personal life?
Kinison acquired much of his material from his difficult first two marriages.
who did he marry?
Patricia Adkins (1975-1980.
did they divorce?
1980.
why did they divorce?
CANNOTANSWER.
who else did he marry?
Terry Marze (1981-1989).

Question: why did they divorce?
Self-contained rewrite: why did Sam Kinison and Terry Marze divorce?