Damn bunch cynical people saying don't get married. Maybe don't get married to someone unless you're sure, and get a prenuptial. There are advantages, legal and financially, of being married.
Everyone tends to extrapolate from their own experiences. My wife and I got married about a month after we met, for complicated reasons. We've been married for just over 20 years now. Mostly very happily! I don't recommend our path to anyone, but the fact is that you just never know.