People will be people.

When you feel even for once, that this person is gonna be different, just chuck that thought out of your head, because he too is going to feel that you're nothing but a worthless human being. But may be because thats what you are. May be because thats what u treat yourself like. Thats how you portray yourself in front of others. And well, if you wouldnt respect yourself, why even in their dreams would they get this idea to treat u this way? But May be thats what you've always wanted. People are going to be people, irritating, funny people. People who pretend. Just like you would pretend.
If you want to be happy, you'll have to pretend. Just like you started pretending that you're upset, and you started being upset... And so got used to it that you forgot how was it to smile. So now, pretend... pretend till you feel it is real. Pretend till you forget your anger, the hate, the frustration, the disgust. Just let those out. Spit them out. Be what you want. Nothing can change situations but you. You thinking that you want to. Why are you behaving this way? Why are you behaving like, yeah right I know, but its not real? Think about it, think about what the great man said,-
"If your happiness depends upon what someone else does, then I guess you do have a problem."
So be yourself. Do what you love. Feel what you want to. And know that life is yours, till you want it to be.