When people only notice when one person is hurting and not the other.
Because, let's face it, we are... bias and selfish and incapable, completely, of how to give affection and love equally.
But the least you can do is try. Or give the attention, at least.
And, y'know, I stopped wanting to care about that. Because people don't listen when I talk. They talk over me or they'd rather be paying attention to someone else talking at the same time. They're not even interested in what I have to say. Yeah, maybe I'm just not the type to push. I don't talk as loud. I don't feel the need to repeat myself a hundred times and say "did you hear what I said?" and give dirty looks when I'm not heard.
So sue me. Sue me, because it's your loss for never listening to what I've got to say.