While you state this person was a counselor, here is the APA guideline regarding such behavior for a licensed psychologist: 3.02 Sexual Harassment
Psychologists do not engage in sexual harassment. Sexual harassment is sexual solicitation, physical advances, or verbal or nonverbal conduct that is sexual in nature, that occurs in connection with the psychologist's activities or roles as a psychologist, and that either (1) is unwelcome, is offensive, or creates a hostile workplace or educational environment, and the psychologist knows or is told this or (2) is sufficiently severe or intense to be abusive to a reasonable person in the context. Sexual harassment can consist of a single intense or severe act or of multiple persistent or pervasive acts. (See also Standard 1.08, Unfair Discrimination Against Complainants and Respondents.)

[b] You can probably search under your State's Professional regulation department for guidelines for School Counselors etc and find similar wording.

Yes, this crossed the line, and I'm sorry it happened to you. Obviously it affected you negatively. I hope you are able to now work through it, and also whatever caused the trigger recently. You weren't at fault at all.