Totally cowardly. Had it happen to myself. Also had a friend of theirs attempt a break up, and a sibling and then... well... doesn't matter anymore.
Not that it is cowardly, but its inwardly sane, prudent to not hurt the other person's emotions even after knowing that you yourself are such terribly inflicted.... Does she brains on that ???
Very cowardly, honest communication shows respect
No. If I feel there's a reason to break it off, then I'm straightforward about it. I don't have any issues with expressing myself in that way.