<human>: Can you give me a shortened version of the text?

Her ex was an alcoholic - physically and verbally abusive. He found out that she is dating me, and so last night he was calling her all night from different numbers to keep her awake, threatening to "expose" her, torpedo our relationship, and make her life hell. I could use a little help here. 

1) What can I say and do to make her feel at ease and loved? 

2) Is there anything I should avoid doing or saying that might be some kind of trigger? 

3) Assuming that he tries to hurt her reputation, what legal protections are available to her? 

4) Any other pitfalls I should watch out for?

For as much as this guy is a desperate and pathetic sad sack, I don't want to give him undue power to affect her anymore.
<bot>: GF still dealing with an abusive controlling ex; looking for ways to reassure her and make sure she has ways to protect herself