I’ll give my two cents on the living together situation. I was a little awkward when my son and his fiance decided to live together. I realized that my awkwardness was not so much that I objected to it (my goodness, they had dated for 5 years at that point and went through 4 years of college apart - they paid their dues!) but it was that I was a little embarrassed as to what others would think. I got over that pretty quickly. 
Honestly I don’t object to seeing HOW you live together before you’re married and figure it out. Just because they lived together didn’t take away from their marriage and newlywed status. After all, not living together or living together it’s still a chance for a lifetime of years together.