Clets abuse has some criminal aspect to it, and much depends on whether the ex is in law enforcement. The pattern you describe is intentional infliction of emotional distress.
You may want to start thinking like a victim if you want to win.
Have you considered restraining order? intentional interference with contract (B&P 1700?)
Hire a good civil attorney, pay him well and proceed;
Do all of the victim actions (no-contact order, stalking complaint, police report)
Good Luck with your forward advance.
Curt Harrington Patent & Tax Law Attorney Certified Tax Specialist by the California Board of Legal Specialization PATENTAX.COM This communication is general information and not legal advice, and does not create an attorney-client relationship. This communication should not be relied upon as any type of legal advice. Please note that no attorney-client relationship exists between the sender and the recipient of this message in the absence of either (1) a signed fee contract and (2) remission of an agreed-upon retainer. Absent such an agreement and retainer, I am not engaged by you as an attorney, nor is any other member of my law firm.
Ask a civil attorney. You are in the criminal section. Good luck.
The response above is not intended as legal advice since it’s impracticable to provide thorough, accurate advice based upon the query without additional details. It is highly recommended that one should seek advice from a criminal defense attorney licensed in your jurisdiction by setting up a confidential meeting. Moreover, this response does not constitute the creation of an attorney-client relationship since this message is not a confidential communication because it was posted on a public website, thereby publicly disclosing the information, which is another reason to setup a confidential meeting with an attorney.