Hey, I was married in the game to another Pirate. He's my best friend, and honestly, the game only was basically a way that we 'met'. We didnt use it to develop a relationship, it was mainly a way that two people who had things in common met (mainly initially we enjoyed the game!)
We got to be best friends and non-stop companions in-game, and that relationship just extended outside the game to the point to where we got closer than expected. Now, we're closer than two people could be, and are very much a RL couple.
We still play, but the game is a tiny part of our lives now.
I can't say all POTC weddings lead to bad things however.
I found a best friend, and partner... LOL