The 1 thing have learned with old is that everyone has a different agenda and what happened could be more about her than you. Some girls never want to meet they just want a pen pal, the attention. Others are rebounding and just want someone to fill the void to help them get over someone. Others just are looking for sex. Some are looking for a R. Others are just casually dating. While some might have been on 5 or 6 dates with someone else, are still dating others but are really close to being exclusive with one person. In my experience if they just drop off the face of the earth there was someone else. Unfortunately I have experienced the majority of the scenarios. That is why it is best to go slow, don’t get emotionally invested early and over time people will show themselves.