ah that’s okay, i couldn’t read your update and not say anything x
it sounds like he has all the typical devious habits of those who want to protect their addiction. it’s a form of madness where they throw away true love and companionship for this isolating drug (don’t forget many pick it ahead of their own children and therefore it is not a sleight against you personally)
in time the sun will shine again for you one day and although you may struggle to find a real closure from this hopefully you will at least be able to come to terms with it all and regain some peace of mind.
i pity his mother in this… stuck at her probable senior age enabling her sons’ bad behaviour … i wonder if she internally despairs or whether she is in as much denial as those in active addiction.
look after yourself x