Guys will never change unless they want to. Women should remember that when they fall in love with a "bad boy". Don't even try to change people because you want them to change. People will change because they want to. So if you get your heart broken by a guy you thought will change for you, don't think it is your fault. Okay maybe it is also your fault but do not put all of the blame on yourself. Don't be too hard on yourself. Try to learn your lesson and try to move on. It will be hard, I know but you can do it. Besides, there is nothing left for you but to move on. Be happy because you deserve to be.