Men need sex like you need an emotional connection.
Guys tend to not care about connecting on an emotional level, so when a dude is romancing a girl, he really is going against his nature trying to provide you with what you need in exchange for what he needs from you (I don't care about all the simps on this site; most of the time they're feminine losers that'll put up with ball stomping so long as they're getting female attention).
Look at it this way, you know how you won't sleep with anyone unless you've made an emotional connection with them? You crave good conversation full of personal topics so that you can really feel like you know the person? Men crave sex in that same way; It's almost like an itch that we can't scratch without your help, and we have to jump through hopes hoping to be alleviated of this annoying itch.
Every time you interact with men you have to come to grips with the fact that men buy the implied sex you're providing with their implied love. A man invests more time and effort into the initial courting process than you do; All you have to do is show up, be pretty, and have a vagina, whereas he needs to impress you and give you all the conversation, emotion, romance, etc that he normally doesn't do with his guy friends (or cares about).
You're expecting female behaviour out of a man, and that's a stupid thing to do. Men have always wanted sex; There isn't a man alive (unless they're a cuckold) who doesn't want sex out of you, or could be in a sexless relationship. The funny thing about it? You think your vagina is worth its weight in gold, meaning you think giving up your vagina is a lot more a heavy price than all the effort and time the guy put into even getting you to drop your pants in the first place.
My advice is to stop putting your own pussy on the pedestal, go out with guys, and see how you feel. If you're attracted to a dude and he wants sex, understand that he's a man and physically needs it instead of taking offense and thinking that he only looks at you as a cheap piece of ass (cause realistically sex is a small price to pay for all the dates he's taking you on, time he's investing in you, and your idea that he needs to devote himself to you before having sex with you).
Or just write of men altogether until you're in your 30s, lonely, and really in trouble.