I totally agree with this. I actually posted a thread about it just this morning. This is what I proposed:

So I don't know how many of you out there are romantics as I am... but I am and so is my wife and both of us play FFXIV. Well... we were talking this morning about FFXI and how in that game you were actually able to get married if you wanted and we both agree you should be able to in this game as well. I think they should take it to the next level though... I think there should be an optional quest that the two intended have to enter into partied together, but then they have to overcome a series of trials and adversities in the game to be truly united with one another... So you get to have a great epic love story just between the two of you... what do you guys think?