Have any of you ladies had success keeping a healthy relationship while feeling as if he or she is not "the one?"

So maybe they aren't the one, but they're the kindest person you've dated. Or you care about them so much, and you know it would break their heart if you left - you're happy with them, but maybe it could be better?
I don't believe there is one person for everyone, I think relationships take time and effort on both sides to be able to work. When I say "the one," I mean that you have that head over heels, in love feeling. Is a relationship without that lacking? Or is it able to work?


Source.