You don't stay married for thirty-nine years because of sex or even because of love but because your partner is a real friend to you because they respect and regard you.
Over the course of time this gave us a deep respect for ideas both our own and those of others and an understanding that conflict through debate is a powerful means of revealing truth.
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Personally I can't see why it would be any less romantic to find a husband in a nice four-color catalogue than in the average downtown bar at happy hour.