r/TitansTV

So, I just finished rewatching season 2 of Titans a few hours ago (at the time of making this post, which is 7:42 U.S. time) and I'm still confused as to why the fuck Donna died trying to save Dawn and that little girl instead of Conner just going over and holding it, cause I'd assume that electricity can't kill him. I would also think electricity wouldn't be able to kill a Themysciran person. Long story short, basically my question, I guess, is why did they do this? Was it just because they wanted a character to be killed off? Did the actress not wanna come back for season 3? Did they not have any creative decisions and/or storyline for her?