I will never understand.
I do, and it's not difficult. All I have to do is read your posts over the past few months to know this man is mentally ill -- very seriously mentally ill. Once you internalize that FACT, you might have better success getting closure.
If you have any ideas about not calling the police if/when he violates the PFA order, expect further chaos at the hands of a deranged man. ONE call, ONE text, ONE drive by your place is a violation. A PFA only works when you insist on enforcement. As a gotcha or scare tactic, it's nothing. Good luck to you.