1. Police involvement is good, they'll tell you everything you need to know and if you cooperate 100% with them ... there is a good chance that a non-serious stalker will be scared off by their involvement.
2. Restraining order - a must
3. Self Defense classes - always a good idea - regardless of age or gender


I know some very lethal ways to deal with an attacker, however I'm not posting them on the internet. Regardless of size, an unarmed woman can take down a man IF she's trained however luck is always an aspect and a person can never factor in everything.

It is best never to take a chance with someone you feel can be potentially dangerous/obsessive.