I feel like you were presented with a unique situation with CMM. You did not have much time to really get to know him before he found out he was sick. You chose to be loyal to and to nurture someone going through a really rough time but without getting to know him outside of that honeymoon phase. Are you happy with this relationship? Do you feel supported and cherished and appreciated? Do you feel like the things you are unhappy with are things he can work on? Are they things you can live with? Any similarities between these issues and issues of other guys you dated?
I agree with you. I think a conversation with a person that helped you in what is a really stressful event while you are on a vacation is certainly ok. Did he expect you to be attentive to him 24/7? A little space to talk on the phone or read a book or check emails is ok when you are away with someone for a few days. Life doesn’t just stop.