Whats the latest ending of series you read or watched which completely destroyed your appreciation for the series

[Sagebee]

Sometimes an ending is so bad people say it ruins a series for you any series recently you feel that way that you feel cheated or wasted time sticking with.

 

[salamander uchiha]

AoT, Mikasa randomly falling in love with Eren and Eren raging to kill himself like a cuck.

 

[Morphorous]

I've read The Witcher book and was so disappointed that it's so different from The Witcher series on Netflix.