My husband and I were together about 2 years before we got married and we lived together that whole time... I really do think that is a good thing lol. BUT I pretty much moved in with him after I'd only known him a few months... oh and moved cross country to live with him(we met online).
But we just got on so quickly, I flew out to spend a week with him and it was like it was totally natural, I left then ended up flying back two weeks later and never left. We've now been together 10 years.