Hi! welcome...
Others will come along soon to greet you...
#1 Therapy
#2 Therapy
#3 No you are not wrong, that is completely reasonable although I would doubt the man would change and I would not trust him again, with money, or with anything.
As for #4, block his number, ignore him when he calls, hang up, or change your number so he can't bug you again. If he shows up anywhere near you, call the police, get a restraining order. He is dangerous and I don't think you need more stress in your life. I was recently stalked by an ex at the gym and it made me very very angry and I felt so sad for myself. I have values. I work too much. I deserve some peace during my day and there he was watching me all throughout my gym class. You also deserve more peace in your day, to allow clarity of mind.
My humble opinion as an outsider.
This is a great site, I am glad you are here
you are not helpless and definitely not alone.