I'm not even sure men are better at hiding it. How many women have had an ex call you up after months JUST to say hello and see how you're doing? That was the old school way. Now with Facebook, Twitter, etc., men are following their girlfriends with reckless abandon like women are, except when they do the six month check in, they already know the answers to the questions since they saw some guy from UT-Austin doing shots out of your belly button.
And he's not happy about it.
Creeping/stalking, whatever you want to call it, is natural. People who have shared intimate details about their life with somebody and had a connection will always wonder what that other person is up to. I can't tell you how many exes of mine are probably reading this right now. And I mean you can just google me! Humans are a curious species. Remember that whole Adam & Eve bit about an apple, a tree, and some luminous cat who oversaw the biggest garden you ever did see? We can't help ourselves. It's human nature.
The difference in finding out could be a pride thing. Women will comment on exes Facebook page out of rage, anger, bitterness, etc. If she sees something that draws her ire, she's more than likely going to say something. Most guys won't say anything...at that moment because we don't want to look like we caught feelings about something. We'll say it privately. Or not at all and go shoot a cow or something.
Pride is a helluva drug.
So yes, men do it too. We just don't let women know we do it. Or at least we try NOT to until we can't help it anymore.
Plus, we like to make sure that the women aren't getting hotter so we can feel good about our decisions.
It was written.