It's sad, and I know, I've done this. Gave up nursing to look after my mother in '94, and she got dementia in 2005, which made the prev decade of looking after her physical infirmity look like a picnic in the last yr of her life. It wrecked my health, but, I couldn't not do it and be true to myself, good on him I hope he gets the help he needs. It's hard to accept help you feel like you've failed somehow, but in the end, you are only human.