Skyler is a confused character that found herself in a horrifying situation largely due to the actions of her husband. I neither love her nor hate her, I agree with some of the things she has done and disagree with others. She is a character that is being dragged along on someone else's journey and she has difficulty knowing how to react.
She gets a lot of hate online, I think most of it undeserved. Walt is a much more horrible person when looked at objectively, but he gets a pass because he styles himself as a badass. A lot of the hate I've seen seems to come down to the fact that she ____ed Ted, which I think says a lot about how male viewers perceive female characters.