Just catching up and sorry to hear of your friends mother.
I want you to think objectively about your H for a bit and in particular how he has treated you for the last few months. Forget the person he once was , but consider who he is now and how he has been of late.
In all reality would you want this man back in your life ? as he is now?
I doubt it . So if there is any chance for you at all you need to let him get on with his mistakes. Once he has himself sorted out then he may ( just may ) be worthy of some attention from you. Right now he has done nothing to deserve you for some time.
Let it go , its the only way forward. Its not the end but a new begining , full of possibilty for you.