If you two haven't fundamentally changed, even if you get back together, you will still break up, so give yourself more time to digest it alone instead of doing it again.
Find an ex to fill the void in my heart, so I think it's good for you and him.
So don't allow him to contact you again, or you will continue to consume like this and there will be no growth. Get to know couples who have broken up. They still separated. One can't let go, and the other always wants to find them. In the end, it was all bad luck.
Because they always focus on here, can't see the future, entangle in the past, repeatedly entangle, and finally feel very tired.
So do you want to live like this? If you don't want to, but you are going in this direction, I don't know who broke up with your ex first, or why I contacted you after breaking up, or why you allowed your ex to contact you.
Then you have your way of life. I'm just telling you a better way of life, that is to leave, let go, start a new life, and improve your horizons and realm.
To see the limitations of yourself and each other, you should realize where your problems are stuck and why you are always entangled. But if you keep in touch like this, you will have no time and space to think and no more growth.