But men DO NOT change. They will not, they cannot and they don't really want to.
They are capable of evolving slightly, maybe growing up a little bit, but for the most part they will always be the same guy.
If a guy treats you like crap, verbally or physically abuses you or cheats on you, he probably always will.
If he is expecting a baby with someone else, you should just throw in the towel, cause there's probably not any hope for your relationship (I know this one from personal experience).
There are cases that prove this law wrong. Men are capable of growing up a little bit when their first child is born, but if this doesn't do the job, then nothing will. And if having a kid doesn't make them grow up, probably nothing ever will. (I am not advocating having a baby to make your guy grow up, babies put pressure on relationships that you didn't know existed).
I've been cheated on by all but 2 boys that I dated, and I married one of them. More than once I gave boys second chances, and they always went back to their old ways. They made me realize that what my dad told me my whole life was true, men are pigs. Even my dad and brothers are pigs. That's according to my dad. He is right.
The problem with finding a nice guy is this: They are few and far between because of this: Women don't always like nice guys. They like bad boys or guys that kind of treat them like crap sometimes. My youngest brother is a good example. He was born a pig. He is cocky and rebelious at times, and since kindergarten (literally, he was engaged on the first day of school) he has had a steady stream of girlfriends. His first real long term girlfriend put up with a lot, and I secretly hope for a reunion someday (I'm team Beth!).
Women almost don't know how to deal with guys who treat us nicely. We put them in the friend category. Its hard for them to break out of that once they're in it. I had David in the friend box for over a year before we started dating, now he's lucky enough to be my husband (yeah David, that's what I said, you know it). Now I have a husband who treats me right, doesn't cheat or abuse me, and shares my same views on life. And he's a good father, that's more important than anything. Even if he makes me be the disciplinarian. What a wuss.
He may be a little obsessed with the Cowboys, but you can't win em all. I can't change him. Even if I were to try, what would I change? Ok, maybe I wish he'd pick up his shoes every night when he goes to bed, but that's not really a dealbreaker.