Shipping characters together has always been a popular pastime for anime fans, who patiently wait to see if their favorites get together by the end. In many cases, this patience is rewarded, even if only by a single scene or line of dialogue at the end of an anime that confirms two characters' feelings for each other. This isn't always the case, though, and there are a plethora of fan-favorite pairings that never come to be by their series' end.
Source：https://www.cbr.com/anime-couples-who-never-dated/
