One of the reasons to get married is to combine finances. Odds are you’re excited at the prospect of doing that, or else you would just live together and forget about the legal stuff. There can be huge advantages to combining finances. Maybe both of you work high-powered jobs, and now you get to double the kind of fun you’re having. Maybe one of you earns more money than the other, so you can support them to do other things (pursue art, raise children, etc.) Maybe you’re both struggling to get by on your own, but splitting a one-bedroom is a lot more affordable than trying to do it yourself. As many advantages as there are, though, it also makes life more complicated. 

Maybe one of you will start to resent the other for depending on them. Maybe one of you becomes afraid to leave the other if they feel like their future won’t be secure. And worst of all, when you split up, things get even more complicated.