Please help

Recently seperated.

Our relationship became so toxic.

We were together nearly 6 years have a child together too.

We never communicated about anything. We broke up because all we did was fight.

Now he is gone and i miss him.

I want him back but he said he needs a few months to think. We are both trying to move on and i think he has found someone he likes. I feel like i have lost him. What do i do?