How To Get Your Ex Back?

I recently told my ex how i felt about him and that i made a mistake, ive never told a guy anything like this before in my life.

Then i should we should try it again. He said what about what (my ex best friend told him) , and i asked what was that he said that i was with more then one guy at once. Which is not true especially because he’s the only guy i want. I told him that it wasnt true and he said we could hang out sometime. But the thing is i dont just want t hang out.

I want him back.

But i dont know what to do.