Has anyone else had success stories with reuniting with a friend/significant other/favorite person after taking time apart when getting treatment?

One of my best friends (who was also my favorite person) just cut ties because he couldn’t bare to deal with my behaviors and didn’t know how to help me anymore. I understand how frustrated he is. He says he sincerely hopes I get the help I need says he would be open to catching up when and if I can be in a healthier state of mind, but he seems to be holding a grudge. He’s pretty hurt and fed up with the way I treated him and he’s saying he doesn’t know if our friendship could ever be the same or be as close as we once were. 

I’m aware of how I was, and I’m taking steps to get help and become healthy. I want to reach out to him in a couple months time and see how it goes, but is it even worth it?