I think this individual may have autism or some other disability that impairs social skills and interaction. Sometimes, these individuals have no concept of personal space and boundaries, even with an average IQ. If so, this maybe why the staff aren’t too concerned.

His inappropriate behavior suggests that he likes and wants to befriend you. He just does not know how to do it in a socially acceptable way. Note: I am not condoning his behaviour, at all.

This should be resolved. All someone has to do is talk with the man. It isn’t too difficult to tell him that his behaviour is unacceptable and to make sure that he does not behave in this way around you. There should be some boundaries placed, such as not traveling together to and from outings.

It was wrong for your therapist to say, "You are blowing it out of proportion.” This is a legitimate concern. You have the right to feel safe in therapy.