Hi,
I have lived with my partner for four years and we are not married yet, we will do it one day but are happy as we are right now. I have two children from a previous marriage and we have a baby together. However, I didn't live with my (now ex) husband before we married, we did it the so called right way, and it was a disaster. Turned out he was a cheating wife beater. If we had lived together before we married I could have saved myself a divorce. You never truly know someone is 'the one' until you share a home together.