As of marriage on the server there is many things you can do like /tpa without the other person knowing your about to tpa, gifting gifts, kissing with hearts, sacrificing your health for theirs, and /pvp which allows you to beat your partner in a battle to the death. None direct bonuses are extra xp... But what if instead of having a little XP bonus you could get points, like Once you and someone get married your able to do everything that the server lets you do. but when you and your partner are near each other doing stuff like killing animals or farming you get 1 MP per kill or 10 MP per stack of sold goods.. Now you might be asking yourself what a MP would be used for and its pretty much the point shop but with marriage related items, like extra XP when mining with your partner or an increase in selling while you and your partner are online. There could also be sets of tools or armor where while you and your partner are near each other for instance if they were made out of leather they could change color, like it starts out dyed white but the closer you are to your partner the lighter it gets until it turns red or pink, while with the tools the closer you are to your partner the higher the enchants are. Its kind of a dumb idea but id love to see more added with marriage in the game Kind of like this
Although this does sound like a cool idea, i see it more of a co-op way to play the game. Maybe we'll implement a similar idea in the future but as of right now. we do not plan to be making the marriage plugin anything more then it currently is.