notsohuman

I am having trouble with question 55 of the partner migration visa 47SP. What is your current relationship with your sponsor? In a de facto relationship - date de factor relationship began? Now we moved in together on the 1/04/13 and so that is when de facto status began but we started dating a year before that, do i put the dating date or the moving in date because a later question is ... when did you or your fiancee or partner commit to a shared life together to the exclusion of all others? This to me sounds like the moving in date, but it all seems very confusing because we decided to be an 'item' well before we moved in together. Any one else been through this who can help?