I met this girl at a party. A couple days later after hanging out at a coffee shop for a few hours we started having sex, this situation continued over the next week. This girl is very conservative and it was apparent she had never been in this type of relationship. I also felt like she liked me too much too soon but maybe thats just a personal issue of mine. Then I left on break for a month, we talked sparingly but made plans for when I was back in town. Now all of a sudden I am getting no response from texts or phone messages.

In a very similar unrelated experience where sex occurred fast and the girl eventually started crying after sex.... Has anyone experienced this? what could the cause be? (I tried to comfort her but I'm pretty sure that was not a good response)

This has happened another time as well and seems to be a recurring issue for me.

Both of these girls I liked a lot, I'm not out there to get my dick wet. As sex with someone your comfortable and connected with is always better. Am I moving too fast? Trying to create a connection too late? or just not doing a good enough job of it? could they be having sex to seek approval and later resent it?

In Both situations there was a very strong sexual chemistry but as soon as there was some sort of lull in the relationship they ended(not on my terms).

have any of you puzzled out any similar situations?