When you were little, you used to stay over at each other's houses to have sleepovers, and you calmed down thinking about it, though now the situation is not comparable.

When you were kids, your feelings towards Luke were much simpler than now, maybe because you weren't in love with Luke as a kid, but now...

Now you were both a couple, and today you were staying the night with him for the first time in many years.

You two were watching a movie on his sofa, Luke clearly engrossed in the movie.