I think sex and fidelity are build up as this big important thing in people’s minds. To the point that you’re suggesting that it’s kinder to remind this very sick person every day that you’re not romantically interested in them, or to leave them to fend for themselves, than it is to have a secret. It’s very easy for me to understand a situation where you stay with your ill partner and do your best to take care of them because you love them, but you also tend to your personal needs for intimacy by finding someone else in secret. My question for you is: in what sense does that hurt the sick person?

I personally don’t think it’s wise to make a vow to always love someone forever and never anybody else. We can’t make promises about futures we can’t predict. People always change, relationships always change, very unexpected things can happen.

I don’t think you’ll find many people in here who would say cheating is a good, admirable thing. But you should read point #3 in the article before being too angry about it.