all our interactions with others do one of two things, and never both: our behavior either makes others more comfortable with us, or less. More personally validated, or less. If we think about which we're doing, no one's reaction will ever be a surprise.
Assumption and lack of communication are the number one relationship killers. We all perceive differently. We've lived different lives. We have different views. Understand that before getting angry at someone for not believing what you believe.