My abusive ex boyfriend

So I got an email from my abusive ex after not hearing from him for almost 5 years. Even though I broke up with him 9 years ago and I have been happily married for 7 years, he is right where he was previously with no apparent ability to move on. He first sent me a video of a romantic song, "Don't Dream It's Over", then launched into a tirade of how I am a monster who betrayed him by leaving, ruined him financially, and turned him away from seeking relationships with other women. He said I have a "pattern" of leaving relationships "after only 10-12 years" because he knew my marriage lasted 12 years and I dumped him after 11 years. Yep, it's still all my fault, according to him, that he's still alone, miserable, and broke without a job..... wallowing in his victimhood.