As far as the meaning beyond the two people involved. With a marriage contract, it gives the partner rights (in the usa, dont know the laws of other countires, feel free to add those details) that wouldnt be allowed normally. One of the reasons why gay marriage is such a big deal. Not wanting to hijack the thread, so if that becomes a debate lets start a new thread.
The meaning and weight of the contract holds only as much weight as you give it. So as in pita's case, it is a very important document, and as in Timberwolfe's case, it would hold little weight.
In my particular relationship, we have a contract, however we don't review it on a regular basis, just when we feel need arrises. She got her first perminate collar before we got married, we both held the meaning of the collar to mean as much if not more than the ring on the finger does.
I hope this answers some of your questions.
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