OK a bit late with my 2 cents and that is all its worth,
first call your local labor office, this is a federal issue and under CT labor laws your employer can fined heavily

second if i missed this please reply why is it that he needs to talk or be in your cubicle/ space/office?

third look in your employee handbook and find the phone numbers to corporate offices (you have been documenting days times etc.?)

fourth
Hang in there, no one said living is easy but it is easier with friends!