I have been online dating after 8 years of celibacy following my partner’s death from pancreatic cancer. I met a man within a week and stayed with him for six months, but we weren’t compatible long term, so we split up and I met a new guy a month ago. Things have progressed well, and we slept together on our fourth date last week. A few days later, he told me he had to go to London for a medical appointment-it turns out he has cancer. I cannot possibly go through that again, but it feels awful to say I don’t want to be with him due to his diagnosis. It’s not an aggressive cancer like my partner had, it’s prostrate but it’s still cancer. AIBU to think he should’ve told me before?