The word is “but.”
Billy wanted to pursue the Weatherman, but he wanted to hold onto his wife and child.
Billy’s wife wanted him to be happy in his job, but wanted stability for her and the child.
The Weatherman wanted to avoid capture but his loneliness was starting to destroy him.
I’ve used this word to realize the conflict– inner and outer– in the story I am writing and I realize that single word helps define each of the conflicts in the story.