Why is it that whenever I get to fuck a girl I like, I lost interest

Biology. A lot of animals do this.

It's like the mind knows this ritual is stupid, your body just can't resist.

>>17922009
most men your age are the same from my experience, and the main reason they get into relationships is because sex on the reg.

often when i fuck the girl i am dating, i kind of feel the same way but i tell myself that i shouldent distance myself because it will make me look like i am only interested in fucking her. honestly, girls seem to get more into a guy when he doesent try or pulls away. i dont know why but its probably one reason why the girls chase you after you lose interest. also, incredibly good looking girls dont have many guys chasing after them because guys feel intimidated.

>>17922009
>dream of just fucking hundreds of women
That's the only issue with it. There is no need to settle down at 21 you're still figuring out the very basics; feel free to bang as many chicks as you want without committing just don't make something so fucking mundane your goal.

>>17922032
>girls seem to get more into a guy when he doesent try or pulls away
Because they like the chase too, and either got not many guys chasing them due the intimidation thing or got too many needy faggots. A person who knows what they want and doesn't run behind you is always hot and stands out.

>>17922050
i get that but if you're looking for a relationship, its a really childish way to be. not running away isnt needy, it just means you're mature enough to be willing to get to know someone. if a guy isnt trying or pulls away he is clearly not even ready for a relationship.

if you're unable to form emotional bonds it's usually out of fear of rejection, imagined or real.

you might have deep rooted commitment issues because you're worried things will go nowhere and it will be a waste of time and you'll end up hurt. This usually stems from insecurity and childhood instability; either these or you've learned to do it to protect yourself from criticism (distancing once things become more emotional instead of physical).

It sounds like you have other things you want to focus on before getting into a serious relationship, and that's respectable. However, most people your age would normally take the dive anyways because most people crave emotional intimacy on top of physical.

It's one thing if you just don't want to be tied down, but if your opinion of these people is changing when you find out they like you romantically/affectionately, the former most likely applies to you and it's some deep rooted insecurities you're trying to protect, especially if you've dealt with depression.

I was the same way; realized I was fine and confident fucking people until it came time for them to get to know me, because I was so insecure in myself I, on some level, didn't think I was worth getting to know. I repressed it for years until I finally realized it was ruining my friendships also.

TL;DR: despite what some people will tell you, this isn't normal behavior, even at 21.