Why???

Why do people cheat on each other? I've never been cheated on but my husband was by his ex fiance. I keep reading all these posts about women being cheated on and it's just so confusing!!!

How can anyone think it's ok??? Why is humanity spiraling out of control? People can't simply say "it's not working" and leave it at that? Why can't people commit to each other anymore? Has the sanctity of marriage dissolved that much that nothing is held dear anymore?

Damn... This kind of shit just makes me want to leave civilization even more...