Why can't we trust the same people anymore?

The moment you think you've found someone that you can trust, they bail on you. Then they think they can just make up for it by saying "sorry." Haven't people figured out by now that "sorry" doesn't mean the same thing it used to? There's no point apologizing if you're just going to keep making the same mistakes again. Why apologize when you aren't going to change? Think about that next time you fuck up.