I'm not a big romantic because most romance seems superficial to me. And as cliche as they may be, I think friends to lover is a very logical thing. I do firmly believe in common interests and active participation in each others' lives, and at least making the effort to understand each others' interests. With friends, you've already got all of that. It just takes some butterflies and hormones, and boom, you've got a nearly perfect relationship (in a perfect world of course).
And while I'm not a romantic, I had the biggest smile on my face as I read the last scene. It demonstrated the extent to which they knew each other. The dimple on his face that had been on his face all day because of his blossming feelings, and how he let her have all the crispy potatoes... ah, it makes my heart melt away. Fluff really is not my thing, but I love the way you write it and your take on such a cliche.