There are several synonyms for the phrase "was offended by" such as insulted, hurt, displeased, offended, and aggrieved. Each of these words represents a slightly different shade of meaning, but they all indicate a negative emotional reaction to something that was said or done. "Insulted" emphasizes the fact that the offending behavior was meant to be hurtful. "Hurt" is a more general term that could refer to emotional pain caused by any number of things. "Displeased" suggests mild irritation. "Offended" and "aggrieved" both have a strong sense of feeling wronged or treated unfairly. Whatever word is used, it's important to remember that people's feelings are valid and should be respected.