That's none of your business. How people "describe" sexual harassment in casual conversation, is not how sexual harassment is judged against policies, rules, and in common-sense consideration when evaluating punishment for making choices that violated another person's boundaries.
Frankly: if the dynamic between two individuals is as such, that for one to walk into a room has been plainly stated to violate the imposed boundaries of another, THAT is harassment. Textbook. Harassment. That's what restraining orders are for.