I have been dating with my current wife (which used to be my girlfriend for about 3,5 years). Plus we lived together 2,5 years. But, I did not include her to visa application as de facto partner, despite even that we lived together. I decided wait until my visa decision and do not mention about my relationship. Now we are going to apply 309 visa for my wife. The question is - do I need to say in our marriage statement that we lived together 2,5 years, or better to say that we have been dating but did not live together so long?