If you`re planning to be home together for the first time, one of the hardest things you can figure out is how much it will all cost. That`s why we`ve included budget support so you can estimate the costs of your shared household. “When we bought an apartment together, my girlfriend suggested I pay the mortgage and she paid all the other bills (which added to the same thing). We had been doing this for a year when my mother mentioned that she thought it would mean I had more rights to the apartment than my girlfriend. We both knew it wasn`t fair, so we reached an agreement to fix the problem. Joe A life contract is a contract between a couple and can therefore cover anything they agree. It is therefore very flexible. It can be concluded at any time, whether a couple is currently moving in together or they have been living together for years. .