You're needing a clear and frank conversation with your husband. Maybe he feels exactly as you do, and going your separate ways is best for all. I'm of the opinion everyone deserves to be happy, and gets to choose their own way in life, and staying with someone out of a sense of duty only leads to resentment and makes everyone involved even more unhappy. You owe it to yourself to be happy, and you owe it to him so he can happy for what time he has. So the truth is the only real out you have at your disposal.

Such a diagnosis is gonna change anyone who receives it, and a bit like having a child, maybe it shone a glaring light on issues that had been simmering under the surface before his diagnosis. As a society, we scoff at folk who decide to cut their losses regardless of the reasons when 1 half of the partnership is ill. But that judgement usually comes from those that get to switch off once their PC or mobile is switched off or the conversation has ended. A classic case of see no evil, hear no evil, speak no evil. If we don't think about it, it's not happening.

Yeah, be truthful. No one is a mind reader and maybe a frank conversation is what's needed. Maybe he is completely oblivious to your concerns/feelings due to his mind being on his health issues. I have no idea.