Your school is not responsible for addressing rude behavior of other students. Conduct such as ostracizing, bumping into you without begging your pardon, etc. do not constitute "bullying" or other unlawful conduct and the school is not legally obligated to investigate or intervene on these issues.
The "history" of the instructor you complain about is irrelevant. What matters is whether this instructor discriminates against you in an unlawful way. This post does not describe any such conduct by this administrator.
Based just on what you have written here, it seems likely that the referral to student counseling is a sound response and you should consider following that advice as a first resort.
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