help awkward situation!!!

Okay so i want to work for a park district near my house but the thing is, is my brothers ex girlfriend works there as well and it was an ugly relationship ended ugly as well and she stalked us for a small amount of time. But working for there would give me great benefits and i dont know what to do. Me and her got along well but what if she started to stalk me? Or want to go home with me to see my brother? Please help!!!