Same shit different night.

I'm I wrong because I wanna stay here and love someone who doesn't love me anymore. He says, " lifes unfair, you just have to deal with it." yes it is unfair. And it hurts alot.. No one knows the pain you go through but yourself. We can say we've had a sallied experience but not the same exact one.. why do people that's been in the "similar" situation come back and be a hypocrite? why would they go and hurt some one esle when they know exactly how it feels to be hurt and in pain? How big is your pride when you hurt someone that's done nothing to you? That's a question I'd like to know and understand..