Welcome to our forum.
Just keep the lines of communication open; communication is the most important thing. Living together is quite a challenge, even if it is very rewarding.
Are you in a co-primary relationship? Is any one of you a secondary? If so, you have to be aware of your rights, http://www.morethantwo.com/polyforsecondaries.html#bor
Hope we can be helpful to you on this site!