Hello. Very Good morning. I'm Dr.Yogesh Kr Sharma. Your girlfriend doesn't need to have any Type of clinical psychologist counseling. She needs to file a Police complaint against that stalker. This is the best option available for you. And you can also request Police to keep your name anonymous and it is possible so keep the parents and society away. This is the point, we don't file any complaints about such matter and it make that man confident & bold and this man is a predator looking for a prey. Actually this is the abnormal behavior exhibited by that man.May be this man has some Psychiatric illness to bother a girl and definitely a case of one sided love. Because a brother cannot bother his sister. Please go to police,  if this problem worsened and have a dreadful result God forbid. Regards. Take care and don't worry unnecessarily. Just take a bold decision in Appropriate direction. Bye.