Without directing this at anyone specifically, I will comment broadly on the quoted sentence above. My experience is that it is simply not true that "love should never be hard." Love is not a feeling, it's an ongoing series of conscious choices to put someone else's interests ahead of your own. This inherently conflicts with our broken human nature. Our instincts tell us to put ourselves, our own happiness, and our own interests first.
Sometimes couples may indeed reach an end of a viable relationship - fair enough. But the idea that those who stay together do so because it has "never been hard" is just not the case. Not only is it sometimes hard-- it's often very difficult -- and there are stretches where it's constantly trying. There may be some times where it's less difficult and times where it's more difficult. But in no case will one find that it's "never been hard."
Ditto with "Love means never having to say you're sorry." That's bunk, too.
What an incredibly beautiful post. So very true!