Make as many people as possible aware of the obsession .If it causes you fear and anxiety report it to authorities,I'm not saying they will help,but documentation of the obsession will at least establish the issue as on going
What Could You Do If Someone's Really Obsessed With You?
Go out with them and try to be committed to a relationship.
This girl, is in love with my man and I'm pregnant to him and she won't let him alone he told her no several times, and she's obsessed with him trying to buy him what should we do?