MapleStory allows you to do just that, and the game has thus far had around 28,000 couples tie the knot in-game. It's also seen 15,000 of those couples subsequently divorce, which seems like a staggering number when you realize that the game does not offer any systems to model the crumbling of your emotional bonds and the slow desertion of your childhood dreams.
As it turns out, the staff at Nexon keeps track of a lot of interesting little tidbits about the marriage system. The longest marriage in the game is at 1,100 days; the shortest one clocks in at just three seconds. The average isn't too bad at 518 days, but couples that both married and divorced in 2012 wound up with an average run of 107 days. And some poor soul is already on marriage number 13, which implies Larry King-like devotions to remarriage. If you're looking at all of those stats and thinking that you can't say no, check out the wedding trailer past the break.
[Source: Nexon press release]