Why do I get myself into these situations...

The same fucking thing happened last year. Let me spell out what happens, more or less.

1. I meet a cute girl through one of my friends at a party/outing.
2. I express interest in said girl and take her out on a date or something.
3. Things go well for about 3-4 weeks, hanging out, making out.
4. I can tell the girl is about to give me a huge cold shoulder, and hope they don't.
5. I get a huge cold shoulder from the girl, ceasing all contact.

I must have some sort of personality flaw that girls only notice once I get close to them. I've asked my friends if anything had been said about me, but the only answer I ever get is like" maybe if the timing was better, things are really busy."

THAT'S BULLSHIT. Tell me straight up what is wrong if you're not that into me.

Like fuck off. Why the fuck would you tease the shit out of me, slowly get me attached, and the drop me the moment things are starting to get interesting. I want a relationship, not month long blue ball. It's not even about the sex. It's more of the principle.

I have no way to find out how to prevent this. >:(

URGENT UPDATE: DON'T WORRY EVERYONE, THINGS ARE GONNA BE O.K, SHE STILL WANTS TO BE FRIENDS SO I SHOULD BE FINE WITH IT NOW.

ya right lol