Witness.

There are billions of people in this world and every one of them desperately wants someone to give a shit about EVERYTHING they do.

After watching the show "Shall We Dance", I have come to the conclusion that marriage isn't always about love or trust or passion.
It is about witnessing your partner's life as it unfolds; the good, the bad, the boring, the exciting. Marrying her means you've given her your word that you will give a damn about every decision she makes. You promise to be the witness of her life here and after.

Very sensible, logical and rational right?
The idea of someone other than you who is very interested in your life seems very appealing, don't you think? (: