Holy Moly, It's MatriMOANy

I have never been married, nor do I aspire to. I respect the sanctity of marriage, I think it is lovely that two people feel like they can be committed and happy with one person for the rest of their lives, I know several couples who have been together for multiple decades happily and securely. I do not however believe this is conducive to general human nature. I believe Margaret Mead's theory on serial love (we choose successive mates throughout our lives based on the life stage we are currently in) rings true for a large portion of humans, especially my generation. Although Mead was also poly-amorous, having several lovers at the same time which to me sounds both emotionally exhausting and open to jealousy and insecurity. I'm more of a serial monogamist. My last long term relationship ended amicably because we were growing apart due to where we were headed individually, both emotionally and physically. We were entering new phases of our lives that were not compatible to each other, even though we were a good match intellectually, physically and emotionally. It was a fantastic, well balanced functional relationship. It just wasn't forever.
I certainly can't see myself getting married until my gay friends are universally given the same marriage rights. How can I believe in an institution that promotes only one kind of acceptable love, isn't that ultimately what marriage and long term commitment are based on? Granted I am young, independent and restless. I'm too busy cultivating my individual life and improving my own future, and I am thankful I was born in the century I was born in, my grandmother's generation frowned on single women living alone. I am proud that I pay my own bills, am independently employed and have many opportunities unprovided to previous generations. I have the luxury of questioning the necessity of marriage. But you know, I am a true believer in love, a hopeless romantic, total cheese-ball, and despite my cynical opinion- I always cry at weddings.