OP no good can come from talking to this guy, let alone meeting up with him and shagging him.
You've had a hugely traumatic life so far and been let down by so, so many people.
Because of this you have no understanding of how you should be treated in a healthy relationship or friendship.
This man is abusive. He may not be 'as' abusive as men you have been with in the past, but just because you've been with someone 10/10 awful before doesn't mean you should accept someone who is 8/10 awful (or any level of awful!) now.
I wish you had an older, wiser woman in your life to take you under her wing and help you realise that you are looking for love and connections in familiar places because that's what we are wired to do. But because abuse and trauma are familiar to you, that's what you are subconsciously seeking out and / or tolerating.
You are a young woman who has survived so much. You have so much of your life left to live. What a gift! You could focus entirely on yourself and spend your life calm, happy and healthy. Being single until you are ready for a relationship is crucial.
A man like this won't give you what you want or need. He will simply reinforce your core belief that you are only worthy of abuse and that trauma is so familiar to you that it's some sort of friend of yours.
It isn't.
You need to reclaim your life. Block him. Delete him. Stop even thinking about men for now.
Choose a boxset you love, get some food you love, have a weekend of doing what YOU want to do that doesn't involve this man or any other men.
You are not a passive passenger in your life. It is yours to live. You're an amazing person to have come out of the other side of everything you've been through so far. Don't waste that person on men who make you feel shit and confused even 1% of the time, let alone 90%!