Music Mondays! (I just made that up, I think this is the first time I’ve ever posted anything musical on a Monday). Either way, this song/video is someone’s current favorite.
Paul plays it to calm her down. (You can tell she was angry before, because when she gets upset she pulls her hair/grabs her ears. She still has one hand on her head gripping her hair, which means she’s still deciding whether or not she’s pissed.)
It is also a song that will be stuck in your head the rest of the day. You’re welcome.