Beauty, Love... Which one needs the other most?

[Achebe]

If it's romantic, sexual love, then well, love needs beauty. Except in rare cases, facial and bodily symmetry and the golden mean drive romance.

How romantic to reduce it to a scientific equation.

Love makes the beloved more beautiful.
Besides, when the lights are off, who gives a shit about symmetry? Nobody.

To the question, love looks for beauty. Boredom is always a lack of love.

But to get to the stage where the lights will be turned off, the players in this drama need to be beautiful. 
Otherwise, when the lights are off, the participants are probably picturing other people. Now that's fine as a compromise, but is it love?That's what international pick up artist Rooshv says.

Now everyone has different standards, because we're all ugly to varying degrees. For someone, a woman who's a 5 is beautiful enough to fall in love with, because he himself is quite average looking. A woman who's an 8 is more beautiful, but out of his league, and evolution has programmed him to get turned off by that, because in another era, the king of the tribe would've smashed his bollocks.

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Jesus Christ, that is a loaded question.

OP, that is a very loaded question. I'm pretty sure I don't have the spiritual, moral, or philosophical acumen for this kind of discussion -- not without spouting out poetry, aka work I don't have to be fully conscious of. But considering this is a poetry forum...

Actually, even if this weren't a poetry forum, and even with my limited facilities, what exactly do you mean by "love", or by "beauty", or by "need"? Because if, in this discussion, there's no commonly agreed upon meaning for those three things, then the best answer would be "other", with all three terms being ultimately too ambiguous to lead to anything fruitful. Or am I supposed to supply my own definitions, in which case I refer to my second paragraph.

I'd say that the commonly agreed upon meaning is what's there in a dictionary. Otherwise we can spend hours debating the meaning of every word.
Or make an assumption and construct your answer based on that.