He has a type of cancer that has no cure? OMG. I feel like a schmuck. I had no idea. My heart goes out to both of you of course.

It sounds like you need a good heart to heart about this. I understand your desire not to deprive him of something he enjoys, but at the same time, your own health is important, notwithstanding his own health issues. I think it's very natural to put his interests ahead of yours under the circumstances, but I still think there is room for compromise. If he loves you--and I assume he does--he'll want to make your well being, as well as his own, a priority.

Hugs,

K