Welcome to polyamory.com. You might want to read and read, and then have a read. There are tons of stories on here that explain 'how poly relationships work.'
Pretty much, as far as I can tell, they all work differently. You and your current partner will have to find a way that works for you.
The Golden Nuggets section has links to lots of useful things, also you can search by using the tag cloud for subjects that look interesting.
Love is that condition in which the happiness of another person is essential to your own...
Robert A. Heinlein
Me: female, bi, (formerly hinge of a vee)
with FirstBoyFriend (FBF)(moderately long-distance)
and no longer with CurrentBoyFriend (CBF)(who now lives in a house far away-with stairs I can't climb)