People are speaking of love, unselfishness, etc. Here's the problem I'm having here: shouldn't these be universal? Shouldn't these be things you seek to have in every relationship?
Are you saying that we are selfish, or unloving, or whatever, for a while, and then suddenly we realize we are finally unselfish or loving, and that's how we know this is the one? But that seems like a rather unsatisfying to go through life, doesn't it? But perhaps this is human nature, fallen or otherwise?
Or, on the other hand, are you saying that we should always try to be unselfish, loving, etc.? But if that's the case, how does that help in determining whether someone we are with is "the one" and who we should intend to spend our lives with? How is the unselfishness or love we have in the significant-other/dating/etc. relationship currently in differ from the unselfishness, loving (sacrificial, etc.) way we relate to others?