So far this week he has contacted you (as he said he would) and you've arranged to see one another on Saturday.
But it isn't as simple as that, oh no. You haven't mutually arranged where and when already. No - he has told you that he will ring you on Thursday or Friday to make the arrangements, thereby keeping you on tenterhooks because you don't know which day he will call. If he rings you Thursday you will be overjoyed, if he doesn't you will worry and then when he rings you on Friday you will be relieved. And desperate to agree to anything.
Then we all know what's going to happen, don't we? Either you will suggest what to do on your date and he willcome up with something different (which you will agree with as you want to see him) or he will have already decided where you are going, and you will agree to that too.
He is in control, not only of when he contacts you and where you go on dates, but also by keeping you in a constant state of uncertainty - so that you will do anything, just so long as you can see him.
Has he told you how lovely you look when you wear a particular outfit/do your hair a certain way yet? He will keep on complimenting you like that. Often. So you will learn how he likes you to dress, and then you will change your appearance and the way you dress to suit what he likes. He will have trained you.
Before long you will find that your taste in music changes too. Because he will tell you are right when you like the sort of things he likes. And you will soon worry about expressing a different opinion in case he disagrees with you (because you don't want to feel like you got it wrong, do you?).
And eventually you will find that you don't trust yourself to make any decisions or have an opinion about anything any more.
He has already told you that he can be selfish and cruel. By continuing to see him you are agreeing to those terms and conditions. He warned you, didn't he? So by staying, it is your own fault if he is selfish or cruel towards you, isn't it, because you knew what he was like and accepted it as part of the bargain. So he will tell you that you are crazy or ridiculous or trying to control him if you ever stand up for yourself.
And of cause because he's already told you what he's like, you don't want to make him angry, so you do your best to be a good girl and do as you are told.
Do you get it now?
Walk away now, with your mental health intact.