women confuse me

I really hate double standards in a relationship! I feel like women can switch any situation for it to be okay for them to do but for a guy to do it it would be the end of the world. Like some women will get jealous of a girl you've known since like middle school but given the situation they expect you to not get jealous of a guy they met just a month ago. And i hate sometimes females will always be out with the girls and make plans  but as soon as a guy makes plans they want to throw a fit like a guy is just suppose to plan all there free time around a girls schedule. I use to think i had a way with females and could understand them but i was so wrong.