There are no guaranties in any of this. That is the hard part. The good news is you will have skills to rebuild the relationship. Letting go of trying to control/manipulate someone and setting boundaries to protect yourself. All while trying to attract them back. Hopefully H sees the changes and likes what he sees.
Hopefully you can find success stories here. The ones that turned there wayward around.
This is tough love.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712