Why

Why do people cheats?  Why can't they just love one person?  Why do they have one or more?  Why can't people be satisfied with just one partner?  If they are no longer satisfied with a current one, why can't they just break up and be honest about it?  Why do I have to remember his password?  Why did that freaking b*tch befriended me?  Why did I have to see those heart breaking exchanges of messages? Why am I still hurting? Why can't I just forget about everything?  Why do cheaters still exist? I wish I could post to the public the evidence of his cheating but what will it do to me? Will it help me move on? Will it persecute him? Why does life keeps pushing me here in this corner? I keep trying to be strong but sometimes I get tired of fighting, there's only so much one can do!