same, i rather watch a drama with a happy ending, even an open ending would be better than a sad ending to me. same reason as you, dramas are like an escape from reality which tends to be depressing so i watch dramas to feel happy. chinese fantasy dramas tend to have sad tragic endings, or atleast a pretty angsty emotion heavy plot and if after all that, it ends sad, then its too depressing. but sometimes happy endings aren't necessarily good endings just like how sad endings are not always bad endings, sometimes a happy ending doesn't fit the story, so i totally agree with you! i think it depends on why you're watching this drama, whether you're here to just escape from reality or if you here to watch a good story...or both.