Conversation so far:
What was Wild Bill Hickok's later life like?
In 1873, Buffalo Bill Cody and Texas Jack Omohundro invited Hickok to join their troupe after their earlier success. Hickok did not enjoy acting, and often hid behind scenery.
Did Wild Bill Hickok have any fights or disagreements with anyone in later life?
In Buffalo Bill Cody and Texas Jack Omohundro's troupe, he once shot the spotlight when it focused on him. He was released from the group after a few months.

Question: Why did he leave his wife ?
Self-contained rewrite: Why did Wild Bill Hickok leave his wife?