Sometimes when people are between partners they can have feelings of insecurity or even loneliness. It is quite common to contact an old flame because it is familiar and comfortable. Often this will end quickly for many reasons. I don't know her but this can include second thoughts or lack of interest. The reasons are endless.. This can lead to a quick contact that seems promising but ends quickly. She could have been sincere at the time and then decided that it wasn't what she wanted. It could have nothing to do with you but rather her own fickle way of moving on. She could be playing hard to get or she could be stroking her ego. Either way don't be played for the sake of an old relationship.
Please press accept; this is the only way I am compensated