Before you start/started a relationship, do you discuss what your deal breakers are?
Should you have done so?
I never have, but I suppose they would have been things about children and their raising. If we had children, I wouldn't have wanted them raised in a strong religious background; I wouldn't have wanted them sent away to a boarding school. They weren't, in any case.
What would yours have been/were they?
Politics?
Religion?
Porn?
Violence?
Alcohol?
How would you feel about your partner laying out what they expect of you before a relationship?