Romance is the most intense negotiating you'll ever enter.

You never ask why the other person rejected you, dumped you. They can't tell you the truth, even if they know themselves what it is. And I think people subconsciously make these decisions, then try to find a reason why they feel the way they feel. And that means they find whatever reason makes them feel good, not which is one more likely to be true.
And so even when someone tells you the truth, you don't know if they are ********ting. So any answer you get is a priori useless. Asking anyway is a sign of weakness.

Anyway, having a relationship with him apparently comes with all what you describe.

On what do you want advice?