I guess it can in a case where you never actually promised to feel anything, when someone just assumes you are "supposed" to feel something and become hurt when you don't. Of course their hurt is their own feeling that they don't have a duty to you to get rid of, then? And they may have good reason to assume you'll feel what they're expecting you to feel, and it may in fact be very unusual for you not to feel it. But "unusual" doesn't mean "evil" or "spiteful".
But if you made a vow to "love, honor, and cherish" someone, I suppose the least you can do is give them a warning and a chance to rekindle in you those feelings that you want back just as much as they do. This can be complicated if you don't really know what changes in them would do that. And to look for ways to make yourself happier that don't involve leaving or cheating... happy people can love a whole lot better than unhappy people.
a fine and enviable madness, this delusion that all questions have answers, and nothing is beyond the reach of a strong left arm.