Anime fans get to gush over their favorite anime pairings by creating music videos and setting it to music they want. Careful editing also creates a pairing that only exists in fandom and not in the show. (Not the case in the example shown here.)
The vast majority make their own while some put up videos done by others like this one which shows the cannon pairing of Tsukushi Makino and Tsukasa Domyoji from ‘Hana Yori Dango” or “Boys Over Flowers”. Most fans point out that they’re not stealing or infringing on copyright since they’re not trying to make any profit from the video. And denial is not only a river in Egypt.
I think this video captures the swoony elements of the pairing. A friend called it cheesy. Oh well.