I see other people wishing for their favorite characters to be happy in fanfiction, and meanwhile I’m over here going “Bring on the suffering! Make them cry!”
I mean, it’s not that I don’t want them to be happy. By all means, please write a happy ending. If everything’s hunky-dory the whole story, though, you lack conflict – and conflict is what keeps me reading. Besides, you can’t have hurt/comfort without hurting a few beloved characters first. Generally the characters who suffer the most are the ones you love the most, because it affects you emotionally to see them hurt (and comforted, hopefully!)
To paraphrase the King of Hell, you torture your favorites – it’s how you show love.