This is a control drama. He is controlling what you get when you get it how you get it. He is playing a game of emotional stress and physical dirt bag.

If you didn't hear this before my advice is to get as far away from him as possible; he is an abusive personality who must control every aspect of his life. Sociopathic tendencies are to try to rush some one into marriage and relationships and then dangle themselves as a carrot.

It's not because he loves you, not at all...it is to see how much he can control you. If you play his game and are appropriately cowed he may get engaged to you until he finds another easier to control target, whom he will do exactly the same thing to. And he will show no guilt whatsoever no matter what he does.

The closest you get to that is the "Give me time I'll com back". Not "I'll come back and we'll marry", just "I'll come back"...and he does often...but no more than that.

You are worth much more than this and if it were me I would be getting as far away from this treatment as possible. Because once a cheater always a cheater they do not changes their spots. Though he will tell you he isn't technically cheating because you are not actually together...

I wish for you strength and personal power...