Because she did not want to be judged by the people in the church. The only reason why those people would judge her is because the way she dresses. So I believe she left the Preacher because of the people at the church judging her .
Opals mom did not like being the preachers wife because everybody at the church judged her by how she looked. When she dressed how she wanted and it was not as fancy as everybody else at the church. So she did not like being a preacher's wife.
I think it is because she likes to drink and the preacher does not agree. Another reason is that the other ladies judged her.
My favorite character is Opal. She is funny and unique. I wish that I was friends with library teacher. She is really nice. She listens to adults.
"Whatever is done in love is done well."