OK. Sorry for making jokes. I gave a stupid reply to what I feel is not such a clever question.
I kinda felt that after all ppl have told you, you're still looking for a way to demonize women.
But then it occurred to me that maybe what has been said to you has possibly gotten through to you and your trying to work out what makes women the way they are.
So id hate to discourage you when your trying to do the right thing.
Even so, you're still way off. All women are not, all walking around pissed off, all the time.
What you need to do when you post such topics is to give more detail and elaborate on why you think the things you do, and where you stand. Then ppl like myself wont make instinctive posts based on your past record. Or, your name.
I'm not sure what you mean about pulling out or stopping suddenly. It sounds like you're not using a condom or birth control. If you have a healthy sex life you will get accustomed to your partners needs and you will eventfully become in sync with them whenever have sex.
You also need to talk to them about what they need. (Not just ask on internet forums.) Since women are all different in their tastes and needs, so only they can answer if they are frustrated by the way you have sex with them.
But just in case you are still looking for ways to blame women for you being unhappy, the first comment still stands.