He's clearly nuts.
His last message - after I repeated I felt unsafe because he's been threatening abc intimidating me etc.:
Please do not continue to make these false accusations. I have certainly not intimidated, undermined or threatened you. I must advise you though that should I obtain any evidence from third parties that you have been saying that I have then legal action may follow for defamation of character.
Eh? Does he think he's in the public domain and that I might go to The Sun to slander him??? He's talking utter bollocks.
He says he hasn't threatened me but two days ago he threatened to call the police which I have in a text message!