I think I came across this the other day, and somehow I find it grates on me. Not entirely sure why.
One way or another I find it impossible/jarring to think of a partner as a friend, even when you add "on fire" to it. To me a partner is not a friend, he's much much more than just a friend. It's someone I want to spend my life with, sleep with, be with. He's the Yang to my Yin, my other half. Not a friend.
I don't stay friends with ex-partners either. I cannot be friends with someone who was so close to me, who at one point in time meant so much to me. Not that there have to be ill feelings, not at all. But to remain friends, no. I could never turn what I used to have with a man into friendship. When a relationship is over, it is over.
That's why I can never relate to this "friends first, than romance". Feels completely off to me.