This is a big generalization. *All* men don't *always* hurt women in relationships. I've known several men who were hurt very deeply in relationships, and I've also know women who intentionally hurt men as well. A woman can hurt a man just like a man can hurt a woman. A man can experience hurt and pain just like a woman can experience hurt and pain.
If this is a recurring issue for you, have a long, hard, honest look at what patterns you see repeating in your relationships and think about how/if you may be contributing as well. If this happens over and over for you, think about how you're picking the guys and make some adjustments to your selection process.