I like marriage, I believe it keeps women who want to get married happy for a little while longer.
I stayed married for a long time when my son was born (almost 18 years) but my average is much lower than that. I am not an easy man to live with, and I choose strong willed women. The clashes are passionate! Great fun in retrospect, hard to survive at the time.
I usually grew to find my spouses and partners more interesting as I went along, but also more annoying. I would marry 3 of the 5 again, if I were assured it would only be for the first part.