This is such a weird thing to comment on but I love the last line, like the whole thing is full of this great tension, and you're just waiting for it to resolve and it sort of does when they kiss, but it's that last line that really does it for me. It's so simple, but it just does wonders to show the way the tension just sort of melts off and they're just so casual with being so close now, kind of like they a little part of them almost expected it all along.

Haha sorry for rambling! Anyway I really liked it :)