You should if you don’t want single people answering and messing up the results you intended. Because in no way would I have read your thread and thought I shouldn’t respond because I’m single. This is a hypothetical, so why can’t I have a hypothetical partner?
BTW, my answer would be that I would proud in the first instance and really be disappointed in both her and myself for picking someone who values their own life more than that of someone else to the point that they would perform such an action. I know I’d probably do the same thing, but that’s something I hate about myself and am so glad I’ve never been put in such a situation. I would hope that my wife would be a better person than I.
Fortunately, this time I read the thread before answering the poll, so I did not vote.