This is a good question, so I'll answer as best I can. I don't sugarcoat things and try to just tell the truth, because that's what I always wanted from people when I was confused about something.
If you can tell a guy just wants to have sex, and you want to have sex with him too, don't have expectations past that unless you both agree on something more. I have met women that just wanted a sexual relationship and that's it (they just got out of a relationship or didn't want the emotional weight of a committed one, or they just wanted sex). There are also men (and women) who expect a relationship after sex, but don't tell the woman that and vice versa.
Sometimes a woman will make a man work so hard for sex (or relationship sometimes) and a man will stop liking her for putting him through all that. The idea that men like the chase is only true for certain guys. If a man likes a chase, a girl who makes guys work might be attractive (if she does that to *all* guys and doesn't just put up a front for him) because he knows that most guys would give up and that he is truly special in her eyes (If the guy understands what is going on).
Sometimes the past is just the past (so their sexual history doesn't matter, all that matters is how they treat each other), and both people like each other, know what they want, and don't want to waste time from being together.
If both people know what they want, take protective measures health wise, and click personality wise I think sex or a relationship should just happen naturally. A long chase (especially if a person plays jealousy or mind games) can get real old. Both sexes don't like a lot of games, work and b.s. when they are trying to date someone they like.
Some guys do just like a challenge, and want to feed their ego. Just like some girls like a man who is a challenge and love the attention and validation they get. Sometimes a woman will go all out to use a man for money, and then dump him when he is broke. Both sexes have some people who use people, and others that don't. To me it's insecurity, but nobody's perfect (myself included) and I had to mature out of things as well (and others too if they decide to), so I guess we are all learning.
Some guys keep a running count of how many girls they do so they try to move on as fast as possible.
Some guys do it to prove they could.
Some guys do it because you made them tread through too much BS before they got laid, and they don't want to go through it again. Maybe you were bad in bed so they lost interest
Maybe he had some long time desire to do you and once it finally happened he just realized that you two really don't have anything in common or have any chemistry or something
I n addition to all that's been said, think of the biology of it. Men want to spread their gene pool as much as they can, while women---well, going thru a pregnancy is no easy thing, so they want to stay with one partner. For the most part, men just want to get laid, and then they get bored of it, so they want to move to the next partner. Also, there is that peer pressure out there to be a stud, and well, the most girls you have, the more studly you seem, and the more approval you get from guys, but that's another society factor.....so yea, some guys are out there trying to increase their body count, while others maybe are looking for something long term.
Also, if the guy is somewhat decent looking he knows he can get more, and unless he is ready to commit, he will be out there sampling all the plates he can possibly get. There was a point in college where my group of male friends was trying to see how many girls we could get in a month period, so yea....many times you chased a girl, you hit, you quit it, and added the number to your black book, and move to the next prey. So as you can see many factors as to why guys are out there dumping women after sex....
Sometimes its just not the same, after a guy sleeps with a girl, she just becomes so, to emotionally needy or clingy, sometimes guys do it to prove that they could, to themselves or to others, and sometimes its all they ever wanted :(
First of all this is not necessarily as prevalent as it sounds. Yes, some guys do this. Lots don't. Why? Each person's situation, ethics, morals, values, etc. are different.
I was actually thinking of asking this same question of girls. I have seen this happen more than you can imagine. So why not ask in general. I think some do it to prove that they can or to show off or someone just might be a crazy hornball who was not faithful from the get go. The most likely scenario and culprit in most cases is just insecurity.
Sometimes when this happens it's because the girl gave it up too quickly... So the chase is over, they have got their conquest, there is no more challenge, so why continue any further.
Sex. It is a human drive that exists to propagate the species. As such, it has a very huge importance to human existence. It is also natural, beautiful and wonderful. Like eating or drinking...
What did that title just say?!?! What??! Men can't have multiple orgasms, that's just silly! The truth is, we can. It's just a matter of knowing the technique. Now, most people had no idea that this...