I think Alexander Smith put the "point of love" quite well: "Love is but the discovery of ourselves in others, and the delight in the recognition."
You can love a friend in that sense to a point, and that may be enough for many people. Obviously romantic love is an entirely different story: irrational and perhaps less efficient than a work partner, but the sort of thing that contrasts and enhances the purely logical.
I'm beginning to see no point in love - only solid, mutually beneficial friendships
Love takes that and raises it to the googol'th power.
I mentioned earlier in this thread that I am getting divorced. My wife and I sometimes talk about the times when we were head over heels crazy about each other, but what we have now and are trying to maintain is perfectly described as "a solid, mutually beneficial friendship."
"What I long for in a marriage is that sense of having a partner in crime."
I smiled as I read this because that's my exact choice of words when describing what I'm interested in.